Do you workout a lot? Working out can cause twitching too. If you don't work out, then i'd agree with your doctor that it's the stress. I personally have never had it, but i've heard of people who have and i've known one person who has had it. He was taking medicine for anxiety and I figured it might be the medicines that he was on??
Thank you! I've been experiencing the same thing all of a sudden after an extremely stressful year of teaching and working three jobs. When I went on vacation it went away. I'm back home - bam! The twitching is back!