Weird pains and movement in abdomen

pain in ovaries and what i think is uterus and intestines. top of belly is hard but bottom is soft. feeling hard movements and pressure (up higher than pregnancy would cause) but not pregnant and I've tested like 4 times in the last 6 months. is an intestinal issue?, endometriosis? doctors don't take it seriously. my whole abdomen constantly feels like it's in knots and it's so uncomfortable. I just want answers