Hi, My son is 8 and he was recently diagnosed with acute pancreatitis. Pancreas was normal in ultrasound and MRCP. His lipase levels increased to 3 times the normal range. His pain subsides on IV fluids for a day. He has been on TPN for the past week. No pain and could tolerate liquids. He tried simple solids for a day and tolerated. The next morning he had 2 slices of gluten free toast with no butter and got backache 30 min after he ate. He has been hospitalized twice in the last 2 weeks for the same episode. His pain is triggering with food even after resting his stomach for a week. The GI specialist couldn t find any source other than an elevated igG4 of 197. He is being treated with 40mg of Prednisone for the past 3 days. Yet, he still had 2 flares of backache today that lasted for 30-45 min. This was even without eating food. Any ideas, insights would be helpful. He is a healthy child with no prior medical conditions.