I know i have diverticulosis but my upper stomach is the atea that hurts more and i get a lot of nausea and cramping between my ribcage right above my belly button. my doctors checked everything thoroughly except my stomache should i request a different d

Second opinion: An additional opinion never hurts. You might discuss your dissatisfaction with your doctor and indicate your desire for further evaluation. Most good doctors will not hesitate to either expand their own investigation or suggest other doctors for additional input. Good luck.

Upper tract.: Sounds like your symptoms are coming not from diverticulosis but from an upper GI tract issue, such as gastritis, duodenitis or gallstones. I agree with looking into it further.