PCOS, month long period, emotional

I am a 27 year old girl who has a month long period still going on. I have had PCOS for almost 11 years now. I have gone through months where I didn't have my period and this few weeks I have had my periods for almost a month and half. I got a TVS ultrasound that showed endometrium to be 1.10 cm thick and pcos. I have been under tremendous emotional stress lately. I am afraid that my doctor is taking this lightly as she just gave me a birth control pill and asked to take it. the first day i took the pill , the period was gone. The second day I took it, again had an episode of stress/ emotional burst and periods started again. It is not like major flow, just that everytime I go to the bathroom I see blood and at times thick mucous when I wipe myself.I am overweight, which I am trying to control.