Uncontrollable Tremors All Over My Body

I am 28 years old and I have uncontrollable tremors. I have it all over my body. While I was having a EGK I began the tremors and during a nerve and muscle test I began to have tremors. I know most of the time when I am going to have it I get dizzy, neausea, and edggy. Sometimes it last 5 minutes sometimes it last hours. It is embarrasing and scary for people to have to see me in that state. I've had all sort of testing done except a spinal tap only because he said he won't use an anesthsia on me. I am afraid that my tremors could begin and something else could go wrong. But, for now they can't figure out what is wrong with me they have me on zanax 2 and prozac 40mg but it doesn't help with the tremors only my emotional stability disorder.