Hi, Xnikx!

I, too, got headaches when I first started taking metformin. I NEVER got headaches before, so it was annoying to say the least! I found that eating regularly.. every 3-4 hours, with regular meals and healthy snacks in between, kept the blood sugar from dropping too low. You don't want to eat something super-sugary like a diabetic would.. that just sets you up for another crash. Try a piece of fruit or some whole grain bread with a tablespoon of natural peanut butter.. hope that helps!