I have had 2 blood test, both came back with high blood sugar level, I went to see my doctor today and for years his has been trying to change my medication (which I take for fluid on the brain) now he has told me that it is these tablets that is doing it ( I have taken them for over 4 years) I have been drinking a lot up half the night to go to the toilet and falling asleep a lot during the day, without this medication I'm going to get the worst headaches you can think of, and then problems with my eyes, is there anyone who can advice me, my doctor said I have to wait a least 3 weeks before another test please help Smokey