Yes, it absolutely sounds like it could be ET. Hand trembling is the other part of the body that it seems to affect commonly. Look it up online. It seems to be quite a common problem and can be treated. I know it is SO embarrassing when it happens. Anytime that I am the focus of attention (i.e. if a group of people ask me to take a picture for them or if I have to take a drink while sitting at a table with people I don't know very well) mine comes out really really bad. It stinks! I had myself convinced that I was suffering from early onset Parkinson's so I was relieved to hear my neurologist say it was ET. It's embarrassing, but it's not going to harm us! Hope you find some relief.