http://www.medications.com/effect/view/30984 I took simvastatin about a year ago and took myself off it because I had really agonizing night cramps in my legs. A different doctor recently persuaded me to take the drug again because my cholesterol was high, but after only two weeks this time I have a Sat, 31 May 2008 16:35:49 -0400 http://www.medications.com/effect/view/30984?item=8785 From what I have read about these medications for high cholesterol, well the side effects you are getting aren't good ones. I think you should call your doctor and let him/her know what is going on and ask too be put on another medication that may work bet http://www.medications.com/effect/view/30984?item=8785