Zocor and fog

I'm a 54y/o female prescribed zocor for slightly elevated cholesterol. Too it for 7 months before I clued in to the cause of my many symptoms. The muscle and joint pain, head fog, blurry vision, weight gain, stomach upset, fatigue, etc... The muscle and joint pain were excruciating at times --especially in my left hip...which had gotten so bad I needed a walking stick for support. Felt like I was 95--and never going to feel normal again!
After reading many postings I decided to stop my zocor 6 weeks ago and am very happy to report an improvement in many of my complaints...although far from where I want to be.
I am curious as to the withdrawal effects others may have experienced. The first week coming off I had stomach aches and I had awful headaches which thankfully did stop. The stomach aches and touchy digestive system still plague me though. Am I the only one experiencing this?....

I am 33 years old and after a blood test about 6 months ago showed my cholesterol levels high my doctor prescribed me 40MG Zocor (actually generic Simvastatin). Since then I've started to forget things and just cognitively I'm slower and less capable. I also had more aches and pains and a weird creak in my knee showed up, but I really didn't key in on that stuff. I went back to my doctor and told him about the cognitive issues and he said "that shouldn't be a side effect of this drug".Well I am very glad I found this website because at least now I know I am not crazy. I stopped taking that garbage about 4 weeks ago and ever since that fog has been lifting.
I have also made a new commitment to myself to include more "heart healthy" foods into my diet and to completely eliminate all red meats as well. I realize there may be some validity to the studies done remarking that high cholesterol is an indication of something bad, but I am not convinced the medical community actually has a comprehensive understanding of cholesterol in the body. I will still go into the doctor to get my levels checked, but I will probably not go back to my old doctor. I'll probably find a doctor who is a little more open to other options. I hate to say it, but I have lost my confidence in my doctor. If I tried to pull something like that in my job as a computer network engineer my customers would simply say "it wasn't like this before you started". Jedi mind trick doesn't work buddy. My body wasn't like this before you gave me that stuff.