Hi. 8 stone is certainly not overweight. I think you should bear in mind the possibility of Late onset T1 (LADA) which I had at age 60. There are more tablets to add such as Gliclazide and Sitagliptin which may help for a while. An HBa1C of 7.5% according to NICE means more action needs to be taken by the GP which means more tablets or insulin. The GP could do a couple of tests to help diagnose LADA, although the treatment path is similar e.g. up to three levels of tablets then insulin; that's the route I've gone thru. Don't worry about insulin; I'm much happier on it then having to starve myself.