Im 29 with strong family history of colon cancer.

Is thickening of colon always a bad thing? They found it on my CT for my abdominal pain. I have seen a gastroenterologist and she is going to do a colonoscopy and upper endoscopy to also check for damage in my esophagus from GERD. I am feeling better since the meds that she put me on for reflux so maybe that was my main problem. But I am worried about the: thickening because I'm not sure if that means anything significant in relation to bowel problems that I have and the abdominal pain.

Has anyone had these tests? Are they really that bad?