Question from Gautier, Mississippi, USA:

Now fifty, I have had hypoglycemia for at least the last 16 years. I have had levels as low as 20 mg/dl [1.1 mmol/L] going to the Emergency Room via ambulance. Twice, I have lost consciousness. For a long time, I have felt like I was walking a tightrope in order to stay level. I eat correctly (healthy, low carbohydrate, good proteins, small meals six times a day. I am maintaining pretty well as long as I do the same exact things every day (eat, sleep, food, scheduled like a baby), But, there are some days that are just totally out of whack. I am so tired, I am so hungry, I feel so stupid. I don't think I could make a logical decision if my life depended on it. Normally, I am a pretty intelligent individual. I was medically retired two years ago, therefore, some of the stress in my life has lessened. I think it has helped with the blood sugar, but there are still days that are really bad. Also, there are times when I feel like I have Vaseline wiped over my eyes. I cannot see. Sometimes I only see half of what I am looking at (like there are holes in it). I also get up about seven or eight times a night to go to the bathroom and I am always thirsty, like I have been in a desert for days. This thirst began several months ago. Sometimes I go to sleep, but wake up after 15 minutes dry and parched so I get up to get a drink. I drink a gallon of sugar free lemonade and lots of water ever day. I do not drink much caffeine, only coffee in the morning. I have had two strokes. I am hypertensive. I am on Zocor for high cholesterol and I take baby aspirin. I am health conscious. I am not overweight. I do not drink or smoke and I never have. I am an athlete. What would you think is going on?