I am an active 63 year old male. I have been on 10mg lipitor for 5 years and have experienced a very gradual muscle degeneration in my legs, feet numbness & tingling and hair loss from my ankles up. I have been to a neurologist, two Chiropactors, and Physical therapy and got some relief, but these symptoms never really disappeared. Recently, my bad cholestrol level increased and my doctor doubled my level to 20mg. After a month, my symptons are now worse and I can hardly get out of bed in the morning with sore muscles in my legs. I have had full skeleton x-rays and MRI's and Bone Bi-op. and have been cleared from other problems such as cancer. I have a strong feeling that my problems are from Lipitor. My doctor is in love with the drug. I am going to stop the Lipitor for a month regardless and see what happens. Joe