Here is an example of blood sugar run amok. I take my medicine without fail, walk every day, limit my sugar intake. But a few weeks ago I got a really bad sinus infection. I had a headache for 3 days. So I went to my PCC. He prescribed several things for me, including Prednisone, which my PCC told me would raise my blood sugar, so he reminded me stay away from sugar. After 2 days on this medication, I had driven to work and when I got off, I was having trouble seeing. I thought I had put on my DH's glasses that morning. Driving was awful, I needed to get on the interstate for my hour drive home and I couldn't see anything. I couldn't even read the liscense plate of the car next to me. I was terrified. I called DH and told him I had his glasses on and I could n't see. I got home and we realized I was wearing my glasses. It didn't make sense to me, how could my eyes change so quickly, like in one day! I took my pill again that night. The next day I still couldn't see. I started to make an Optometry appt, then remembered what my PCC said. Suddenly I realized my blood sugar was too high. I was scared I would be blind forever. I stopped taking the Prednisone. It took 3 days for my eyesight to return to normal. In the process, I developed an ulcer on my gums under my lower lip. Diabetes even effects your gums. It has taken 7 days for the pain to diminish, and my gums are still swollen. Now I am worried how the sky rocketing blood sugar effected eveything else. I have an appt next month with my Endo. Anyway, sorry this was so long. Just some insight into the dangers of diabetes uncontrolled.