It could be possible...
In my son's case he had a colonoscopy on the 1st of December 2010, he was diagnosed with Crohn's and his inflammation was rated at mild to very mild. His Crohn's is in his Terminal Ileum and at the time the GI did not want to push through the inflammation so he had an CTE the next day to gauge the extent of the inflammation, it turned out he had 100mm of bowel affected and no other abnormalities were seen. So he was immediately commenced on Prednisone, Flagyl and Imuran. Over the next two and half weeks he developed increasing pain and a limp...he had three hospital admissions and it culminated in him requiring surgery the following April. His symptoms at diagnosis were next to non existent, his inflammation was mild to very mild, he was commenced on meds immediately but he still developed a micro perforation, fistula and abscess...the point being it only takes one deep ulcer to cause all this.
Dusty. xxx