Re: twitching... like Beth said, none of my doctors have asked about it, they make note of it if observed, but don't comment. When I asked what the twitches/fasciculations indicate, my neurologist said that no one really understands why they occur completely. As they can caused by more than one set of circumstances, they are not all that useful for diagnostics.
I got to thinking about how twitching is supposed to be lower motor neuron in cause. Which has got to be true. However, what about how stress or too much caffeine can bring it on in virtually everyone in the population? When that person's eye (common example) starts twitching, and does it off and on for periods of time, & this person is perfectly healthy, it may technically be caused by the interface between the lower motor neuron and the muscle, but what sets it off has to originate somewhere else in the brain. Heck, I've noticed when, after too little rest and too much caffeine now, if I get upset, my eye will jump like crazy, I definitely think its a faster twitch than it used to be, more fluttery, but still, the cause of that specific event is brought on by circumstances, not my illness.
Mark, just hang in there until your appointment, there are a LOT of conditions out there that we all never knew existed until we enter this world of weird neuromuscular manifestations. good luck!