My glucose levels seem to vary wildly. For the past 5 days my morning reads have been 137, 123,126, 136 and 97. I have also taken three evening reads. The first two were around 8:30 or 9:00 after a 2 or 3 hour fast and the results were: 91 and 101. Another evening read was taken at 11:30 pm after a few alcoholic drinks and a big hamburger patty with no bum and steamed vegetables. I am male and 49. I feel like I have had blood sugar issues all my life. There are times when if I don’t eat my head feels like it is caving in and I can’t think straight. What is happening? Signed Sweet in LA.