What is the reason why i have headaches for more than a week and each time i stand up or look around i feel dizzy or like i lost sugar.

Doctor should check: Most people get a headache at some time, such as from colds, infections, lack of sleep, too much driving, long hours on the computer, stress at work, etc... Over-the-counter treatments include Tylenol (acetaminophen) Motrin, Aleve, Excedrin Migraine, and their generic brands. A bad or increasing headache, recurrent headache, weird headache, or persistent headache like this one should be checked.