My wife has been having normal periods till last month. However, this month her periods were delayed by 4 days, started on Aug 8, it went for 7 days till Aug 15 and then stopped. Usually her cycle lasts for max 4 days, not more than that. Then again on Aug 16 there was little spotting and finally it stopped on Aug 18. After that it again started on Aug 25 with heavy flow just like normal periods. Right now it's still there but the flow has reduced and it's intermittently. She is 48 and is on BP and
Thyroid medication. What could be the possible reason for such abnormal and erratic periods in a month? Kindly advise, we are extremely worried.