I'm a 15 year old girl, 5' 2'', 100 pounds, and I was in the ER a while back with a blood sugar of 50, they gave me a sandwich and tested again and I was 182. That seems really high to me. I got some test strips and fasting blood sugar is 90-100, and no matter what I eat 1 hour later I'm above 160. I'm back down to 100 2 hours after eating, but I'm worried that something's going on. After I eat I get really tired and my mouth gets dry and I'm just really thirsty. The doctor thought I was hypoglycemic because of the blood sugar reading of 50, but I go higher than I should a lot. If I go back to the doctor, what test do I ask to get done?