Yep, sounds like hypoglycemia (I have 2 brothers with it, and a cousin; I'm diabetic; so is my Mom). Please tell your doctor.
I sometimes get hypoglycemic episodes, though borderline diabetic, if I skip meals, and it's scary--my feet start to sweat (they NEVER do this otherwise), and it feels as if it's on fire up to my upper calves, and I feel woozy, and a little voice in my head says, "You HAVE to get food in youself SOON!". It's especially scary when driving. I've known hypoglycemics who tell me they feel as if they're pulled to one side of their bodies, like someone's grabbing them on one side, and pulling them. I was once with a diabetic, whose insulin caused a low-blood sugar reaction; he actually bounced sideways, hitting a wall--not good, as this was in the Rennaissance Room of a museum, and there were DaVinci prints on that column!
The best thing to do is avoid all sugar (there's a lot hidden in processed foods); and eat lean turkey and chicken. Carry a snack with protein, example, peanut butter or cheese crackers, with you. I hate 'em, but they help!