I few weeks ago I experienced diarrhea. I needed to get on a plane so I took 3 pills of over the counter anti-diarrheal medication. I was all cramped up during the flight, and all day (but it was better than having to deal with going on an airplane). Afterward I had several days of discomfort and semi-loose stools. That has mostly gone away (the loose stools) but but I have been noting pain in different parts of my abdomen. I am very overweight, and suffer from degenerative disks and pinched nerves. I take percocet a couple times a day. I wonder if that could be developing the pain that persists in my abdomen. If so, is that dangerous? Should I be going to my MD to have them check for some kind of internal damage?