To start with I have a hernia of some kind there and have frequent infections there and in my right shoulder. cartilage is damaged and nerves get some pressure sometimes there. Horse-riding, intense athletics, dancing and motor-bikes (when I was young (lol) is the cause and arthritics don’t help (plus I am still riding motor bikes, horses and dance whenever I can, also I do a lot of gardening (just got an apple tree down with my chain-saw). The feeling that I have since CDIP is a weird tremor (as if I have a vibrating phone on my neck (arm, legs, fingers or wherever). This gets more intense, starts feeling like electricity going through me and then starts twisting of some kind (mainly legs, fingers and arms twitch, neck not so much).