I'm sorry that you're going through this at the moment NurseNancy, and I do think it's MS related.

Essential tremors and those jerks, called myoclonic twitches, are right up there on the long list of MS symptoms.

I once had a leg jerk/spasm so severe, that I damaged a tendon in my knee, but I've not had them in my hands.

As already suggested I think this is another one for your Neuro.