TMI!! Anyone help!?

I’m so fed up of constantly being in pain, I always have bad stomach pains and they were excruciating when I got my period for the first year, then I started taking the pill and they last 9 days every time, are still very painful but not as bad and the blood is brown not red? I thought it was old blood cycling out but it’s not. Also my period always starts 10-15 days before I’m due when I was regular before the pill. If anyone knows why this is happening or what I can do let me know please! I’m so tired of constant pain. So sorry about the TMI photos! Also I’m going to my doctor tomorrow to discuss my first three months on the pill. I’m on the Feanolla pill.

I’m