Hi Sarah! Welcome.I'm 31, also. I have twitched for four years. Like you, I had an EMG prior to my tongue twitching. Lets see... I started twitching in May 2004, was seen by a neuro in June 2004- didn't believe him so... went to Mayo Clinic in August 2004 (I live in Jacksonville and my bro-in-law new a doc over at Mayo that got me in pretty early), had my EMG August. Then, in October, my tongue started twitching. I went back to the neuros at Mayo insisting on another EMG due to the tongue. She (actually they) looked at it, said it was fine and refused to perform another EMG. One of the neuros was quite clear that IF there was something wrong (like ALS) then the first EMG would have picked something up even though only my limbs were "poked". Hope this helps. Also... you're not self testing are you? Like sticking you tongue out to look at it??? If so, this use to aggravate mine. And I notice if I'm starting to get a sore throat it will aggravate the twitches there. Again, hope this helps! Take care.