i had open heart surgery in 2011, have done well except my cholestrol stays hi, my doc gace me crestor, and it was so expensive it got so i could not afford it, so he gave me atrovastatin, i already had muscle cramps, but after the change in meds they go tos much worse. i was up 3-4 times at nite trying to get comfortable enough to sleep. it got so bad i stopped taking it altogether, now i see there is another generic for crestor, are the side effects as bad with this one, or do you know? he is going to be inhappy i know, but i was so stressed with the pain and no sleep i felt like i was protecting myself, thank you