There is something called Benign fasciculation syndrome. It is when you have muscle twitches for no apparent reason. There is a really good website out there about
that with a lot of info and support from others with it. I don't think I can mention the name on here, but if you look on the internet, I bet you will find it. I'm no expert on MS, but it doesn't sound like MS to me.
Many times the more anxious we get about things, the more symptoms that tend to show up. Plus, you become more aware of these things happening where if you weren't anxious about it, you may just ignore them.