I am a 61 year old female. I have been on Zocor eight years. after a heart attackat age 53. At first it was 10 Mg, then when I changed Doctors,about 2 years ago, my Zocor changed to 20 Mg, then about a year ago she moved me up to 40 Mg. She does't know I am splitting the pill and taking half of 40 Mg each day. After reading all these other patients problems, I am going to stop for a while to see if I feel any better. I have just about every side effect that I have read about today.The most noticeable is severe fatigue, weakness, ears ringing, fuzzy headed, trouble sleeping,headahes,vivid dreams,mostly bad dreams and irritability. I also take celebrex, klonopin.doxipin and an aspirin a day. I am so glad I found this Web site. I feel sure that I have been taking Zocor toooo long. Bye Bye Zocor.