I have spasms and twitches but not in my head or neck. I have had body jerks, arm jerks, leg jerks, usually just on one side, more commonly my left. I take Neurontin and it seems to reduce their frequency and intensity.

I know what you mean about the sensation building before it releases a twitch. The anticipation from the building sensation is worse than the twitch. I know I cannot change the building sensation but it gets in the way of other thoughts.

Weird stuff.