For a very long time (4-5 months), I missed my monthly cycle. Ever since I joined gym, my cycle was regular. However, after 2 months of continuity, it skipped the 3rd month, which was concerning. Finally it arrived after 10 days and the flow was very minimal. Now its been more than 15 days that i am still on my periods and the flow at time is too much to be able to stop, it pains alot and sometimes its just minimal waste. What should I do? Why does this keeps happening? I understand that being overweight I need to make certain changes that I already did- which is a slow process and I will eventually get in shape but will this continue? Also, i have observed blood pieces coming out from my body.