What Is PMDD?When PMS Is Severe

For about ten days every month, you’re someone else. You snap at people you love. You cry in the car. You wake at 3 a.m. with a heavy dread, and by day two of your period, it lifts, and you spend the next three weeks apologizing and wondering what’s wrong with you.

What it looks like

Cleveland Clinic² says PMDD brings physical and emotional symptoms in the one to two weeks before a period, including anger or irritability, anxiety and panic attacks, and depression with suicidal thoughts. It also lists trouble concentrating, fatigue, food cravings, headaches, insomnia and mood swings.

A review in PubMed Central (PMC)³ defines PMDD as physical, cognitive and affective symptoms that cause clinically significant distress or interference in the seven days before menses. It estimates that 1.8 to 5.8% of menstruating women have it each year, with up to 18% having significant premenstrual symptoms.

For ordinary PMS, our article on irritability before your period covers what’s typical.

Why it happens

Cleveland Clinic² says the exact cause isn’t clear, but hormone swings look central: the drop in estrogen and progesterone after ovulation and before a period may trigger symptoms, and serotonin, a mood-regulating brain chemical, also fluctuates across the cycle. Risk factors it lists include existing anxiety or depression, a family history of mood disorders and a history of trauma.

How it’s diagnosed

There’s no lab test. The OWH¹ says doctors diagnose PMS by symptom tracking over multiple cycles. The PMC³ review says clinical diagnosis requires prospective daily ratings, with a validated tool, across at least two menstrual cycles to confirm the timing.

What helps

The PMC³ review says SSRI antidepressants are first-line treatment and that both continuous dosing and dosing only in the luteal phase, the 14 days before a period, work. It says intermittent dosing is well-tolerated. Which medicine and schedule suit you is a clinician’s decision.

On hormones, it says a birth control pill containing drospirenone with ethinyl estradiol, taken on a 24-day active and 4-day inactive schedule, showed benefit, while it notes that no placebo-controlled trials of standard dosing have shown pills in general outperform placebo. The OWH¹ says hormonal birth control may help with the physical symptoms and antidepressants can help the emotional symptoms.

Cleveland Clinic² also lists diet changes and vitamins such as B6 and magnesium, over-the-counter pain relievers, regular exercise and stress-management techniques like meditation. It says that with treatment, most people with PMDD get relief. The OWH¹ lists aerobic exercise, better nutrition, enough sleep and stress reduction.

The play

Try this: two cycles of daily tracking

Every evening for two full cycles, rate your mood, irritability, anxiety, sleep, energy, appetite, bloating and pain from 0 to 3, and note the first day of your period.

Mark which days you function normally, and which days you don’t, at work and at home.

Bring the record to your clinician. This is the same kind of evidence the PMC³ review describes for diagnosis.

When to get checked

The OWH¹ says to see a clinician if symptoms bother you or affect your daily life. Cleveland Clinic² says to contact a provider for extreme anxiety and panic attacks, severe depression or suicidal thoughts, uncontrolled anger or feeling out of control, and lists the Suicide and Crisis Lifeline at 988, available around the clock in the US.

Book an appointment if any of these fit:

• Mood symptoms show up before every period and ease after it starts
• Your relationships, work or parenting suffer in the week or two before your period
• Lifestyle changes haven’t been enough
• You have anxiety or depression that gets worse before your period
• You’ve already tried a pill or supplement for PMS without relief

If you’re having thoughts of suicide or self-harm, call or text 988 now.

Moodiness doesn’t cover it. A pattern that comes back on schedule is information, and there are treatments.