PMT- gynaecologist. Of this pain.

I have this PMT problem since 4 years where my stomach starts paining 15 days advance of my cycle date..My stomach will be bloated, gastric formation, irritation and depression in behaviour. I have consulted nearly all the doctors but i have got no relief from any medicines..During this time i will also put on weight.i have got all the test done and there is nothing severe..All i know as per doctor is that while cycle, the blood comes inside and gets deposited over ovary making my ovary double its size and i get this pain Every 15 days before my cycle date. Can anyone please help me with proper medication as i am unable to take this pain and it have literally killing me so much.. I get into depression because of this pain..