I think only the time will tell us what is it. since there is no test to say if it one onset or something that is very slowly progresse. For meanwhile - I'm trying to be optimistic and do my best to help myself.
Next month I'm going to see a new neurologist here. hope that she will tell me more, but also - there is no cure, but time, good diet and relax.
About twitching - my neuro said that - these are common complains of neuropathy and that this means anything. (So, even if this is not true - what can we do? so I choose to believe him).