Thanks for the response, he's been having different pain since September, sigmoidoscopy Early Nov showed inflammation but wasn't far enough, they didn't know the extent of the damage, put him on steroid foam and suppositories but by Dec he couldn't get out of bed.
Full colonoscopy showed inflammation all over the big intestine, spread in many places they wanted to remove the whole lot, inter-venous steroids didn't work, so they started infleximab, this Friday is the 2nd dose and daily prednisone.
It just seem to happen so fast, I take him for a colonoscopy and he's kept for a week, I think he's getting better and the surgeons get in, maybe he's shy to tell me the real symptoms but I don't know how can I help? he's that tricky age of 17 and was ready to become a man, go to university, become more independent.