| Dee,
Everyone is different. Some find that after eating, they have some reactive hypoglycemia where their blood sugar drops too low after a meal. Some find they can drive their blood sugar too low with exercise. You are on amaryl, which will boost your insulin production, perhaps too much. Normally, your body will respond to low blood sugar by reducing insulin production and dumping blood sugar from your liver. If your insulin is chronically elevated you may not respond this way.
My suggestion is to discuss this with your doctor, if you really are 115 in the morning and 75-80 throughout the day, you are doing better than an A1c of 6.3 and you might consider reducing/dropping the amaryl. In the meantime, consider walking well after meals (after insulin is low and stabilized), or take some quick acting carbs along with you to boost your levels.
...brian
ps. 500 mg of Metformin is also a very small dose, marginally effective in most.
__________________
...brian
T2 since 7/05. 48 yrs. 5'11 195 lbs.
Exercise, very low carb diet
HbA1c 9/07 - 6.3%, 3/08 - 6.2%, 6/08 - 6.2% | 
