Seroquel-severe Muscle Cramps, Dizzy, Groogy in the Day and Hair Loss

I have been on Seroquel 200mg at bedtime for almost six years now. I use it for insomia. When I first started taking it, I had severe cramps, especially in the legs. It was really bad but went away after the first few nights. It works great to get me to sleep.
It does cause dry mouth, sometimes, and when it does, its bad. I found "oral balance" and "biotene" to work great for the dry mouth. It makes me groggy the next day, almost like a zombie. I can not concentrate like I used too and I am slower at thinking. It has also caused hair loss which is bad. My daughter could not sleep for days and I gave her one of my seroquel. I hated I did that after she spent the next several hours with terrible leg cramps. I will talk to my doctor about how to get off the stuff and try something else for sleep.