While you are waiting to see your doctor, try excercising (it is a natural way to lower
your blood sugar
). Even a walk will help. If you don't feel up to it, make sure you stay away from sugary, white foods (things high in carbohydrates).
276 is a fairly high reading, the range should be 80-120. Mine is typically 110-170, although after a meal it has been in the 200's. My husband just found out he has diabetes also, and his was 479 when he found out!