Nathan Reilly has had Type 1 diabetes since he was a baby.And until[recently],the 19-year-old always had his mother to help remind him of the litany oftasks people with diabetes must do:check blood sugar;adjust insulin pump;watch what you eat;be careful how much you run around.Now a freshman at Pennsylvania State University,Reilly feels confident he can manage on his own.He spent much of his senior year of high school practicing the routine,preparing.