Been taking Lipitor for approx. 15 years low dose 10mg 3 days a week. Doctor says the muscle/joint pain is because of how long I have been on it. Been off for almost a month and still have the pains, one arm then the other then shoulders or hips. Jut started taking COQ10 but only 100 mg. but have read that is too low a dose. How much is safe to help with muscle/joint pain?