Bill,
Yes I have had muscle spasms and twitches a lot. they can happen any place in your body and I have had them in places I never thought possible! The good news is that they don't "hurt", but they are annoying and until you know what's causing them---mercury--- they are really scary! I went to my doctor about them afraid I might have Parkinson's. He said I didn't but did not know why they wee happenining. Well, now I know and since I have gotten my fillings out they are greatly diminished. (My fillings have been out 2 months now.) I may have only a few per day now. I am expecting that as de-tox goes on, they will continue to lessen and eventually disappear completely.
I have also had a few dizzy spells but thankfully not many.
Hang in there and hopefully soon you will experience some relief.

Chelan