Sounds like everyone is having the same symptoms...I was taking lipitor and my doc changed mine to ZOCOR ..he started me off on 40 mg..and just recently upped it to 80 mg..my legs are so sore when I stand up , I can hardly walk up the stairs...I have unexplained pain in my legs , shoulders, arms...and recently have been having anxiety attacks...I have felt horrible since being on this medication. I thought it was supposed to help , not make me feel worse..I am fatigued all the time, dizziness, heel and leg pain..I am 43 years old and feel as though I am nearing 70....I think I am going to stop taking this medication and see if there is a difference in the way I feel, especially after reading everyone else's side affects. it's very scary after reading all this, but I am glad I found this site ...