When I constrict either arm while bending my elbow, my arm from the elbow down shakes violently. I am on no meds and the onset was rapid, about ten months ago. I have seen a neurologist, had a MRI of the neck region and was told that the tremor is not bad enough to warrant any further testing such as a CAT scan because "nothing would show up due to lack of severity" I have been a dental hygienst for 33 years and can no longer work in my field. I have no tremors when my arms are resting or if I use counter force while constricting my muscles. My neurologist recommended not to try a betta-blocker due to the side effects and my history of depression. He only worked with betta-blockers that circulated through the brain. What should I do next? Thank you,Cinbom