I'm a 42 year old with family history of colon cancer (maternal grandmother in her early 50's) I also believe my paternal grandmother passed from cancer as well (not 100% sure though). I did test positive for BRCA in my DNA. In 2009 I had polyps removed during a colonoscopy and have not gone back for another scan.
Four months ago, I started feeling ill (lower back pain, hurting to pee, etc). Couldn't pinpoint an exact symptom, but I did go to ER where I was diagnosed with UTI and sent home with antibiotics. About 3 weeks later, I ended up in the ER again for same issue, told I had UTI and sent home, more antibiotics. Three weeks after that is when the nausea just hit me like a ton of bricks. Had a KUB scan which only found 5mm nodule in base of right lung,. I was Dx'd as having kidney infection, given yet stronger antibiotics and sent home. Urinalysis had come back with blood in urine, but not an infection.
During that time, I had had a period that lasted over a week (which was very unlike me). The following period after that was about awful. The clotting was extreme and lasted only 24 hours. Also had bleeding/pain during intercourse. Now, I'm also noticing I'd been feeling weakness and extreme fatigue. Went to my GP where some labs were done and a referral was given for OB Gyn. During this time, I'm noticing these symptoms are persistent. Good days had become a thing of the past and now this severe bloat has me looking like I'm about to deliver. But this bloat seems to have started to mess with my shoulder, breathing is in short breaths.
So I have my appointment with OB where he suggests a hysterectomy, gets my CA 125 along with CBC. The CA 125 cane back 22 and now the last three cbcs have come back with elevated WBC/lymphs absolute. Dr sent me home to take provera in case of endometriosis, but before I could even start that, I started my period 2 weeks early. I also had a seizure with this one. It has been 2 years (longest ever) since I had a seizure, was Dx epilepsy (catamenial) at age 14.
I then get a call from Dr stating I needed to go in and then told me my hysto was off the table, that he believes he will be finding something and do this week just be exploratory laparoscopy.
Last night, was in ER again for my extreme bloating. Was told they only drain for person's with liver failure. Have me a CT with contrast.

All scans have pretty much clear. A transvaginal showed an ovarian cyst but that was normal

My question is:. Can CTs miss ovarian cancer, or could I have colon cancer and be missing it? Also, if it's actually in my colon, would Dr be able to recognize it during laparoscopy if it's not in ovaries? My quality of life lately is in the toilet and I just want to start feeling human again.