Simvastatin and muscle pains

Have been on Simvastatin since May 2007. Have experienced debilitating headaches every day for the first three months, neck and shoulder pain, lower back pain, tiredness to the point of having to stop what I am doing and go to bed and am wondering now whether any other female taking Simvastatin has experienced a burning sensation when passing very hot water and extremely uncomfortable and painful sex.

I've been on simvastatins for about 2 years after TIAs. I'm 56. I had two small Strokes about year ago despite being on simvastatins. Had brain scan which showed two small areas of scarring and carotid artery scan- arteries fine. Started experiencing dizziness last year and GP diagnosed vertigo and gave me seasickness pills which didn't do much good. Since then I've experienced headaches which last for weeks, increasing fatigue (now struggle to get out of bed in morning) muscle pain which is getting really bad and sore feet (?). Increasing memory loss, confusion, lack of concentration, eye problems (when I first wake in morning my vision is blurred for ab out 30 minutes or so. I've been worried i mmay be developing Alzheimers. I've also piled on weight and the texture of my hair has changed - it has become very soft and silky and become thinner - normally my hair is very thick. Also I've had two perms in last 6 months which won't hold curl - been having perms for years and never had this problem. I've had several blood tests including for under-active thyroid and they have all been clear. I've been really worried about all these problems and did some research and came up with this site. I am beginning to think my problems stemm from taking 40mg Simvastatins so am going to stop them and book appointment with GP. Any comments/advice would be appreciated.

severe muscle pains in legs and pain in liver