In the past two weeks, I have been very light-headed but my sugar levels have been averaging 117 when I get out of bed. I am confused as to what is causing the light headed feeling.

Dr. William Sullivan


There are a number of causes of lightheadedness that should be considered. If your blood glucose readings are reasonably stable, then other causes need to be considered. A common cause of lightheadedness when standing is a drop in blood pressure (called orthostatic hypotension). This condition can be caused by excessive blood pressure medication, dehydration, or certain other medications that can lower blood pressure excessively. Another cause is autonomic neuropathy from diabetes. This condition occurs when there is nerve damage to the autonomic nervous system that controls blood pressure with changes in position. As there are a number of causes of lightheadedness, you should make an appointment with your healthcare provider to have a full evaluation.