Been reading this forum for a while and never posted. But this situation is the same as mine. I have crohns.
I had a colonoscopy, endoscopy, showed nothing. Blood work was indicating high likely hood of crohns. One dr. said, "uh, might be a virus". ok....
Next Dr. did a capsule endoscopy that showed signs of inflammation confirming crohns.
My symptoms were the same. Diarrhea and stomach pain.
So, yes do the capsule.