PMS Symptoms: Why the Week Before Your Period Feels So Hard

Some months, you can tell your period is coming before you even check the calendar. Little things start getting on your nerves. You feel more emotional than usual, your jeans suddenly feel too tight around your waist, and you crave something salty or sweet. You might even snap at someone over something small, then wonder later why it bothered you so much. A few days later, your period arrives, and those feelings gradually begin to settle. These are some of the common PMS symptoms, or signs of premenstrual syndrome. They can appear in the week or two before your period and usually ease within a few days after it starts. Some women barely notice them, while others find that mood changes, bloating or discomfort interfere with their daily routine. The symptoms can vary from month to month, but if they keep returning around the same time, there are ways to manage them. Understanding what causes PMS, which everyday habits may help, and when to see a doctor can make those difficult days easier.

What do PMS symptoms look like?

PMS shows up differently in every woman and can change from one month to the next. The NHS says the most common symptoms include:

• Mood swings, irritability or feeling low

• Feeling upset, anxious or close to tears

• Tiredness or trouble sleeping

• Bloating or cramping

• Breast tenderness

• Headaches

• Spots on the skin or greasy hair

• Changes in appetite or food cravings

The timing is the real clue. MedlinePlus says PMS symptoms most often start about 5 to 11 days before your period and in most cases stop when, or shortly after, it begins. If you feel the same way all month, something else may be going on, so see a doctor. You are far from alone. A review of 25 Indian studies with 8,542 participants found that about 43% of Indian women of reproductive age reported PMS. Among adolescents, the figure was 49.6%.

Why does your body do this before a period?

Your hormones rise and fall across the month. After ovulation, levels of oestrogen and progesterone climb. Then, if you are not pregnant, they drop sharply in the days before bleeding begins. Doctors still do not know exactly why this causes symptoms. The NHS says it may be linked to these hormone changes and that some women are simply more sensitive to them than others. This may help explain why a friend can sail through the same week while you feel turned inside out.

The cravings and the bloating

Craving chocolate, sweets or salty snacks is common in the days before your period. Feeling tired or low can make those cravings harder to ignore, especially when you're looking for something comforting. Bloating is another common PMS symptom, often caused by your body retaining extra water. Eating a lot of salty foods may make that uncomfortable, puffy feeling worse.

Also read: Why do you crave sugar all the time. Other Common Causes Explained.

How do you know if it is PMDD?

Premenstrual dysphoric disorder, or PMDD, is the severe form. MedlinePlus describes it as severe depression, irritability and tension before menstruation, with at least one mood symptom. The pattern is the same as PMS. It builds in the week before bleeding and usually improves within a few days after the period starts. The difference is how hard it hits. MedlinePlus lists these common PMDD symptoms:

• Lack of interest in daily activities and relationships

• Fatigue or low energy

• Sadness or hopelessness

• Anxiety

• Feeling out of control

• Food cravings or binge eating

• Mood swings sometimes with bouts of crying

• Panic attacks

• Irritability or anger that affects other people

• Bloating, breast tenderness, headaches and joint or muscle pain

• Problems sleeping

• Trouble concentrating

MedlinePlus adds that the sadness or hopelessness can come with thoughts of suicide. The Indian review above found PMDD in about 8% of women studied. PMDD is a recognised medical condition and it is treatable. According to MedlinePlus, most women with PMDD find their symptoms go away or drop to a level they can live with after proper diagnosis and treatment. If you have thoughts of harming yourself or ending your life, get help straight away. If your life is in danger, call 112. If you or someone you know is struggling, call Tele-MANAS on 14416 (free, 24 hours). If you have PMDD (premenstrual dysphoric disorder) and are experiencing suicidal thoughts, seek emergency medical help immediately. The NHS advises going to the nearest emergency department or calling for an ambulance. In India, you can call 112 for emergency assistance. Don't drive yourself. Ask someone you trust to accompany you or arrange an ambulance.

Track two cycles before you decide anything

A simple first step is to write it down. The NHS suggests keeping a symptom diary for at least two menstrual cycles and taking it to your doctor. A notebook or a period app on your phone both work. Each day, note:

1. The date and the day of your cycle, with day 1 as the first day of bleeding

2. Your mood, rated from 0 to 3

3. Body symptoms such as bloating, breast pain or headache

4. Cravings and sleep

5. Anything that disrupted your day, such as missing college or leaving work early

After two months, you will see whether your bad days cluster before your period or are spread across the month. That pattern is what a doctor needs. No physical exam or lab test can diagnose PMDD, so your diary does much of the work.

What helps in daily life

A few changes to your daily routine may help make PMS symptoms easier to manage. Both the NHS and MedlinePlus recommend starting with regular exercise, good sleep and healthy eating habits.

1. Stay active. You don't need an intense workout. A brisk walk, yoga or even dancing at home can help you stay active and may ease some PMS symptoms.

2. Get enough sleep. Poor sleep can make tiredness and irritability harder to manage. Try to keep a regular bedtime, especially in the days leading up to your period.

3. Eat regularly. The NHS suggests smaller, more frequent meals, around every two to three hours, if that works for you. Instead of skipping meals and feeling very hungry later, try to eat at regular intervals.

4. Cut back on salt, sugar and caffeine. MedlinePlus recommends limiting these, along with alcohol, to help manage PMS. Too much salt may worsen bloating, while caffeine late in the day can affect your sleep.

5. Keep satisfying snacks handy. If you tend to crave something salty or crunchy, try roasted chana, peanuts or makhana. You can still enjoy your favourite snacks. The idea is to have a few nutritious options available when hunger strikes.

6. Find small ways to relax. Stress can make PMS feel harder to deal with. A little quiet time, gentle yoga or a few minutes of slow breathing before bed may help you unwind.

If you experience period cramps or headaches, painkillers such as ibuprofen or paracetamol may provide relief. Check with your doctor or pharmacist about which medicine is suitable for you, especially if you have other health conditions or take regular medication.

If tiredness continues during your period, it may help to look at other possible causes, particularly if you have heavy bleeding.

Also read:

• Period Fatigue: Why You Feel So Tired During Your Period

• Iron Deficiency in Women: Symptoms and When to Get Tested

• Magnesium Deficiency: Common Signs and What to Look For

What does research say about calcium and other nutrients?

Some women also consider supplements to help manage PMS symptoms. Calcium is one of the nutrients researchers have studied. In a study of 497 women with moderate to severe PMS, researchers compared 1,200 mg of calcium daily with a placebo (a pill without an active ingredient). After three menstrual cycles, PMS symptom scores dropped by 48% in the calcium group, compared with 30% in the placebo group. Symptoms such as food cravings, bloating, mood changes and pain improved. The study was conducted in 1998, and women taking the placebo also reported improvements. It suggests calcium may help ease some PMS symptoms, although results can vary from person to person. Before considering supplements, make sure you're getting enough calcium from foods such as curd, milk, paneer, ragi and sesame seeds.

A review of 31 trials also found that calcium, vitamin B6 and zinc may help with PMS-related mood symptoms. However, most studies had limitations, so more research is needed. You can get zinc from everyday foods such as chana, rajma, pumpkin seeds, cashews, eggs and dairy products. Check with your doctor or pharmacist before starting supplements, especially if you take regular medicines, as the NHS advises. If your symptoms are severe enough to affect your daily life, supplements alone may not be enough. For a more severe condition called PMDD, MedlinePlus describes treatments such as antidepressants (SSRIs) and talking therapy, alongside healthy lifestyle habits. A doctor can help you decide what treatment is appropriate.

What a doctor may offer

If habits and two cycles of tracking are not enough, a gynaecologist or your family doctor has treatment options. According to the NHS and MedlinePlus, these include:

• Hormonal medicine, such as the combined contraceptive pill

• Antidepressants called SSRIs, which are often the first choice for PMDD. Some women take them only in the second half of the cycle.

• Cognitive behavioural therapy, a talking therapy that teaches practical ways to handle the thoughts and reactions that flare each month

• Pain relief for cramps, headaches and breast pain

Your doctor may also test your thyroid to rule out other causes.

PMS at home, school and office

In many Indian homes, periods are still something people hesitate to talk about openly. Mood swings may be dismissed as bad temper, while cramps, headaches and tiredness are often treated as things women should simply put up with. At school or work, it can be difficult to explain why you're struggling when you look perfectly fine. Talking about your symptoms can help. If you've been tracking them, share what you've noticed with someone you trust at home. Keep water, a snack and any pain relief recommended by your doctor or pharmacist handy for difficult days. If your school or workplace offers flexible hours, consider using them when symptoms are particularly troublesome. You shouldn’t have to hide how you're feeling or push through severe symptoms every month. If PMS regularly affects your studies, work or relationships, speak to a doctor about ways to manage it.

When to see a doctor

The NHS advises seeing a GP if you have symptoms of PMS and lifestyle changes have not helped, or your symptoms are affecting your daily life. MedlinePlus gives the same two reasons for PMDD. If you take medicines, the NHS also advises checking with a GP or pharmacist before starting regular supplements. If you feel the same way all month, not only before your period, see a doctor, as something other than PMS may be going on. Thoughts of harming yourself need help straight away at any time of the month, as set out in the PMDD section above.

Back to that evening

Next month you will see it coming. Your diary will show you which days are the hard ones. You might plan an early night, swap the namkeen for roasted chana and tell your mother before dinner that this is your rough week. Some months it may still get the better of you, but knowing the pattern helps. If it is bigger than habits can handle, asking a doctor for help is a sensible next step.

Sources

• Prevalence of premenstrual syndrome and premenstrual dysphoric disorder in India: a systematic review and meta-analysis (Health Promotion Perspectives, 2021)

• Calcium carbonate and the premenstrual syndrome: effects on premenstrual and menstrual symptoms (American Journal of Obstetrics and Gynecology, 1998)

• Effect of nutritional interventions on the psychological symptoms of premenstrual syndrome: a systematic review of randomized controlled trials (Nutrition Reviews, 2025)

• PMS (premenstrual syndrome) (NHS, 2024)

• Premenstrual dysphoric disorder (MedlinePlus, 2024)

Medical Disclaimer: This article is for general information and is not a substitute for advice from your doctor. Speak to a qualified healthcare professional before starting any supplement, especially if you are pregnant, breastfeeding or taking medication.