have your sugar level tested! i suffered the same thing and i'm hypoglycemic. i found out a few months ago. just cut caffine carbohydrates (potato, rice, noodles, bread, the main things) and sugar out of your diet. See how you feel then. Also drink juice (4oz.) as soon as you wake up in the morning and with each meal through out the day or when ever you feel dizzy. But definately when you wake up if you're hypoglycemic it will help. Suggest the test to your dr. good luck!