My 13 year old grandson suffers from right arm tremors and also when he talks or is running at football his neck twitches when he talks he can't control his head movements it constantly jerks back, This is a constant thing he cannot talk to you at all without his head jerking upwards it started about 2 years ago and has gotten worse his hands are also growing outwards. His neurologist can't find a diagnosis he has had several mri's las thursday he had a muscle biopsy done on his upper right arm he has had every blood test you can imagine done ruling out tourettes, wilsons disease. He has been to shriners hospital and had all of his bones xrayed its not his bones. I feel so bad for him the kids at school constantly tease him and call him twichy its so painful for me to see him suffer from this does anyone have any suggestions I am getting very frustrated with his doctor and he is so tired of all the testing . Thank you Jeri