My 38 year old sister has PKU and was on a strict diet until 18. She went back on the diet last year following positive research from the internet. My 18 year old daughter has recently been diagnosed with diabetes type 1. She is unusual. She has negative antibodies and had hypos for 2 weeks off insulin. She has been off insulin for 7 weeks and her blood is just starting to rise in the evening although has had a few hypos recently. She was tested for addisons disease and this was negative. I am curious as to whether there is a medical connection between diabetes and PKU.