Hi, I'm a 32 year old slim guy and I think I'm diabetic. I've tested myself a few times and blood sugar has been higher than 11.1 a lot of the times. My sugar always comes back in the 12-13 range after eating chip butties from the chip shop but my doctors tell me sugar is perfect because my fasting glucose is 5.4/5.5. I don't know what to do. I've had these high readings many times after food but my fasting sugar is always normal.