What Causes Constant Stomach Ache And Pain After Sex?

have had a partial hysto in may25th due to probable adnomyosis, and scar tissue. and a tumor and partial kidney taken off my kidney august25th. My stomach is still hurting horrible pains. intercourse with my husband hurts bad and makes me bal up all the next day. i am 26 with 3 kids, and I just want to be better for them.. one doctor wants to check for diverticulitus and one says it is the bladder, and one says it is muscle spasms. I trust all 3 doctors. but I just want to know what can still be hurting me so much