I was on crestor for several years and always felt tired but recently developed severe muscle pain; i looked it up and stopped the drug. my cardiologist Rx'd Lovastatin. I would be happier not taking any statin. I feel better than I have in all the time I was taking Crestor. After a pacemaker implantation I was taken off Pindolol, Avapro, and Florinef but left on the Crestor. I had complained of weakness and pain plus being tired all the time but as I also have insomnia the doctor seemed to think that was the problem. The pain reached a level that was intollerable so I checked the mayo clinic site and it said to take a holiday from the drug to see if the pain resolved. I am afraid I will have the same problem with the Lovastatin