Hello.
In view of the fall on the neck, I would recommend that you get an MRI of the cervical spine. And consult a neurologist again for the same. Some injuries do not make themselves apparent at the time of the fall.
This might just be the pinched nerve root at the spine.
Regards
When I do something with the hand tremor stops, I fell on my neck about 3 months before symptoms started.
Hello.
Do you get a sharp pain when you feel that the skin is getting stretched ? And does the tremor increase while you are doing any work with the hand ?
The numbness does point towards a nerve problem. Do you remember injuring yourself before all this started ?
Alternately, you could have a muscle tendon problem .But it will not be wise to jump to conclusions right away.
Please consult your physician first, if you have not done so already.
Regards