I too suffer from Type 1 Diabetes. Although, the DVLA have recently revised their requirements for T1's to obtain a Group 2 driving license.
As such, I was pretty sure I read somewhere that the CAA will also permit it subject to stringent rules.
However, I'm not sure if i'm confusing the N-PPL and fully fledged PPL rules.
By recently, I mean since the start of the year.
I'd be interested to see if this is the case or if I've just missed the point
Adam.