I started taking 10 mg of Lipitor in 1997 and have been taking 80 mg for about 6 years. I have not noticed any side effects attributed to Lipitor. I do have many severe leg cramps at night and muscle pain in my right leg when in static situations (sitting, standing & sleeping). I also have foot numbness & toe & finger cramps. I have also lost much of my finger and arm strength. I & my doctor have attributed these symptoms to arthritis. I can still play tennis & golf but my neck stiffness is becoming more of a problem. I am 73 and am afraid to stop taking Lipitor as it has corrected my C problem. I also experience hot periods in the middle of the night.