Birth control pill gots me upset.

Okay so I have very irregular period to the point where I couldn’t take it anymore. The doctors are trying to find out what’s wrong but in the meantime I decided to use the daily BC pill to regulate my period. I really didn’t want to but I had no other option. I started using it about 2 weeks ago. I stopped bleeding right away. Then I forgot to take it for 2 days and I had a stomach ache almost like a cramping/bloated/constipated feeling and started spotting. I been regularly taking the pill for since I forgot to take it which is 2 days and my stomach is still upset. It’s not upset to the point where I can’t do anything but I’m very uncomfortable even when lying down. Idk what to do. Has anyone experienced this? Anything I can do to get it to feel normal?