Luv,
Although twitches can be caused by lots of things, they can be caused by a Lyme infection. Other symptoms may include shoulder, neck, back pain, female problems, changes in skin (spots/rashes). I mention this because you don't mention other symptoms but your post is from the coastal area, I would assume, and that area is high risk for Lyme.
Do you ever recall being bitten by a tick? Few people do so they don't consider Lyme...but even if you don't remember a bite, I would hope that you keep Lyme in the back of your mind should symptoms get worse or change.
If it's Lyme, antibiotics would make the twitching stop if caught early enough, I think.
Bethsheba