Cause of hand tremors?

Since Tuesday I have experienced hand tremors. They stop (or I think they stop) when my hands are active. But when I try to hold a fork/pen or when they are at rest it gets uncontrollable. On top of this there is a tingly and numbness from above my elbow to my hands. The same sensation is felt above my forehead- and that also has a very weird spacey feeling. I even became dizzy, had some headaches, had a hard time saying words and lost balance.One doctor told me it was a panic attack- but failed to provide any testing not even using his stethoscope (this was a trip to the emergency room because I became very nervous). another suggested in depth testing. Since Im uninsured I dont want to spend any money on anything unnecessary. The tremors are becoming very annoying and would like to know how to stop them. Am I being paranoid?? Would appreciate any help or advice. This began Tuesday night- the worse being on Wednesday and Thursday. Thank you.