Just make sure to read up about MODY if there is any chance of a misdiagnosis. I think mody (types) is the type1 1/2 sometimes brought up. AFAIK these add up to maybe 5% of adult type diabetics but can also be misdiagnosed as type 1. The test would be a genetic type and there are at least 5 or more subtypes of varying pathology. The least pathological variant though, is much less onerous than real type 2. Skinny and active and not old/otherwise predisposed should be reason enough to double check. We haven’t met a ped or primary doc in the US who knew of it, period, however there is at least one big hospital (UC) running a study.