Have been on Lipitor for 3 months and before that, zocor. I have been having such bad muscle cramps in my legs, feet, abdomen and back. I have numbing in my face as well. When I went off zocor, I felt better then doc put me on Lipitor. It took longer for the symptoms but they are back. I take CoQ10 and do all I can. I can't stand it anymore. Doc says the cramping is NOT from Lipitor.