I have been on Zocor about 3 months and have severe back pain, leg cramps, and now my knees are so sore that I can hardly walk very far. I also have the tremors in my index fingers and sinus pain and headaches. I also have blurry eyes sometimes and often it feels like a haze covers them. I have been wondering why I have felt so "lazy" and stiff and sore for the last little while. I was on an anti depressant and even with that, I have felt more emotional lately. Also sex drive has decreased noticably for me. I am (or was) a healthy 53 year old female who has always enjoyed good heath until the doc noticed my cholestrol levels were up and prescribed statin drugs to lower it. This morning I woke up with the distinct impression that it is the zorcor and that is when I started researching on the internet and found this site. It is interesting to me that all the symptoms I have been having are described by others taking this same medication. I will not take it again.