My scalp suddenly became numb. Its like I've been injected with anesthesia. It started a day ago, and I feel like it is spreading to my forehead and ears. Its been more than 3 weeks that I have been lacking sleep because of planning my homebusiness and I started homeschooling my son. Please help me, I am 36 years years old, 50lbs overweight so I just recently started again trying to lose weight and been taking Xenadrine or a diet pills. I stopped it around a day ago, because I had my menstrual period. I decided to just take the pills whenever I could be able to go to the gym. Please help.