Hello Doctors, From past few days, my index finger in the left hand has been twitching. It is painless and it used to happen once in a while, but now it has been happening very frequently. I work on computer all day, but the twitching is present even when I'm NOT using my laptop and when I'm resting. The rest of my fingers are ok. I consulted a general physician and he told it might be because of computer usage or Vitamin Deficiency. What else could this be? Is there any medicine for this?