The short explanation
Irregular periods with new mood changes like irritability and tearfulness in the forties can be a sign of perimenopause, the years before periods stop. Changing hormone levels, poor sleep from night sweats, and life stresses at this age all affect mood. Mood changes in perimenopause are real and can be treated. A doctor can talk about options, which may include lifestyle changes, talking therapy, and, for some women, hormone therapy or other medicines after a proper assessment. If you feel low most days for two weeks or more, depression should also be considered.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- Thyroid problems, anaemia from heavy periods and vitamin deficiencies can cause similar symptoms, so a doctor may suggest blood tests.
- A previous history of depression, premenstrual mood problems or postnatal depression can make mood changes in perimenopause more likely.
- Telling family what you are going through can help them understand, and reduce conflict at home.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This answer cannot confirm perimenopause or say what is causing your mood changes. A doctor who talks with you and checks your health can work that out.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Are my symptoms likely to be perimenopause?
- Could thyroid or anaemia be part of this?
- What treatment options help with mood in perimenopause?
- Is this depression as well?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Emergency — call 112 now
- Call 112 or go to the nearest emergency department if you have thoughts of ending your life, have harmed yourself, or feel you cannot keep yourself safe right now.
Book an appointment soon
- See a doctor within a few days if low mood lasts most days or affects work and family. You can also call Tele-MANAS on 14416, the free national mental-health helpline, which answers in many Indian languages.
Raise it at a routine appointment
- Book a routine appointment with a gynaecologist or physician to discuss perimenopause and mood.
Sources
The evidence this explanation is built on.
- Depression in adults NHS
- Depression MedlinePlus (NIH)
- Mental health MedlinePlus (NIH)
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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