I have had colon surgery two years ago for a twisted colon and they removed a foot of my colon. I have an extremely slow moving colon that causes horrible cramping. I have had three ct scans and every time I receive one they find no blockage but I am full of stool and bloated so bad people think I am expecting. I currently take Cymbalta also for anxiety. I have been seeing my colon surgeon but I am thinking I need to see a doctor that specializes in this field would that be a GI doctor? I pretty much think I have IBS but no one will diagnose me with it.