I'm 44yrs old and have had a muscle spasm very close to nonstop in my right hand inbetween the index finger and thumb for over two years. I mentioned it to my doctor about a year ago and was told that it is probably just stress related. Granted, I've been under a lot of stress in the past year and nearly as much the year before, but most of my life has been stressful. I've had MRIs done for headaches (ruled to be some sort of migraine) and there was no indication of brain issues. Still, I don't understand why this twitch won't stop. It is effecting my sleep as well as distracting me during my awake hours. Is this possibly a symptom of something more than just stress?