low blood sugar--hypoglycemia--can cause neurological symptoms, especially in people with insulin resistance/impaired glucose tolerance/diabetes. The boomerang effect of wide blood sugar swings is very hard on the nervous system.

Usually, the symptoms are as you have described--shakiness, visual disturbances, confusion . . .but in those who already have peripheral nerve damage, those central nervous system (brain) symptoms will only make the peripheral symptoms more erratic; the brain is having enough trouble figuring out the "weird" peripheral impulses and, when hypoglycemic, is now in a state of impairment. One could, conceivably, "feel" almost anything at that point.

Mel, eat lunch. 52 is too low a reading for anyone, but particularly someone still on diabetes meds.