My twin sons, 14 year old, diagnosed in February 2015 with type 1 diabetes. In the last 10 days the blood sugar level of one of them elevated to 200+ without no obvious reasons that we can think of while his twin brother's blood sugar remains stable (85 to 110). The blood sugar level remains fluctuating, but still above 200. I tried to adjust their long acting after consulting their physician with no change. Any advice what to do or what could be the reason? Thanks