That's how mine started. For the first couple years it was on again, off again. Then it got to where it was all the time. First the doctor's said it was stress. But when I was really stressed, it didn't twitch at all, and when I wasn't stressed, when I knew I was relaxed, it was going ninety to nothing.
Finally after putting up with this, I figured it out by during a web search. It was another year before a doctor said, "Yes it is Blepharospasm". (FINALLY!!! duh!

) So they put me on medication for a couple years until that wasn't working. Now it is botox.
But that 2nd week after the botox I absolutely hate.
Here is a link to a picture that was taken a week after the botox.
Picture