You bet statins cause cramps. I’m begging to think it’s the dirty little secret that is being kept from all statin users. I'm off statins for now and no more cramps, vibrations or trigger finger. It's so nice to sit and watch TV without the terror that comes with the precursor of an attack. My cholesterol is up from 185 to 295 in the 6 weeks or so since I stopped all statins (Crestor being the last). I meet with my doctor in 3 weeks so perhaps he'll have a plan. I read that statins in low doses taken with CoQ10 there are no cramps. I'd be willing to give that a try. Whatever we decide I want blood work every 2 weeks like a Coumadin patient to monitor my CK levels. Normal CK (Creatine Kinase) blood levels range up to 198 U/L (units per liter). My level was 540.