I did not suspect Lipitor as the cause for my shoulder pain and rash on my leg. I've been taking Lipitor for couple of years and over time both my shoulders were so painful that the doctors (2) said I had inflammation and possible muscle tears. Put me on antiinflammatory pills and eventually gave me cortisone shots in both shoulders. During this time I continued to take Lipitor. I went on a 2 week vacation to Mexico and forgot to take the Lipitor with me and I didn't have a prescription to get more in Mexico (legally) so I did without. Magically during my second week without Lipitor, my pain started to subside in both shoulders and the rash eased up. I have been off Lipitor for 1 month now and my shoulders are almost back to normal and rash has stayed away. I am convinced it is the side effects from Lipitor. I encourage all to see their doctors regarding going on another form of Statin. I myself have started taking some liquid glucosamine (with condroitin, MSM, and Colegen) that I got at Costco, Vitamin E, and Fish Oil capsules. Not sure about my cholesterol but the pain is almost all gone and improving daily. Good luck to all who are dealing with the side effects of Lipitor. This is my theory and I'm sticking to it.