I am unmarried & always had regular periods but from couple of months my periods go beyond 2-3 weeks. starts wit spotting & becomes severe after 1 week. was advised to take syphlon which works sometimes but this month it increased the bleeding. Got two scans done, I was told I have hormonal imbalance but scan report appears fine. got thyroid tested and the value is TSH6.9 I don't take any medication for thyroid. I have put on some weight and lead a stressful life due to work. pls advise.