Sigmoid removal 2020, now functional issues, adhesions, or new disease

I'll try to keep this as brief as possible. At the moment I'm in the bathroom contemplating when exactly I'll decide to go to the ER.

So here's the cliffnotes version of my GI health since 2019. 2019, diverticulitis and early cancer. End of 19' & early 20' hospitalized 3x prior to surgery in February of 20'. February of 20' had 8 inch of sigmoid removed. It wasn't a lower anterior surgery. That, said...my post surgery life has never been good. I've been in and out of the ER every year since my surgery. Currently, I'm having bad cramps, and stool that's between pudding and water. At times it feels very similar to pre-surgery life. Before surgery, I was terrified I'd have another microperforation prior to my surgery date. Staying healthy for surgery in 2020 was difficult. I was on 800 mlg of Augmentin for two months prior to the sigmoidectomy.

Fast forward again to July 2026. Left sided flank pain under my rib, near the top of my hip, and a location exactly to the left of my bellybutton. I had a hematoma that went away after using a heating pad. This occurred after my surgery six years ago.

Here was what I need help with...I've had 5 CT's in 2 months. The first two from an area hospital showed nothing. Blood work also clean. A month goes by and I'm back at the ER. Two more CT scans, with two more clean scans. The only slightly odd issue was one barely raised liver enzyme. Fast forward 3 more weeks and I go to a highly rated teaching hospital. CT ordered again, this time, unlike the other four scans showed diverticulosis throughout the GI tract. Questions. How can the previous 4 with contrast miss such a thing???

I truly need some brilliant advice. I think that some of these physicians are going to treat me poorly as they don't seem to take me seriously. My insurance situation is good so that cannot be a problem.

I think I either have something going on in my colon, or I have some brutal adhesions. Either way this must get fixed. I'm sick of living like this😔. On top of my medical bs my wife is 7 months pregnant. If I go back to the ER they need to order something other than a CT. I'm thinking an MRI. Or, just order the bloody colon scope and tell me where to go, & when? Thoughts? Any suggestions are greatly appreciated.