Anyone else had or have this. My shoulder mainly right will just start jerking. Sometimes goes in my stomach too a sort of big jerking movement, i had a strength test and that went ok. My whole right side is affected from my arm being heavy to the back of my leg calf) i am on citropolam (celexa) 20mg and the jerking is at its worst when i lie down and try to sleep. Its driving me pottu. I am so worried its Motor Neurone diesease can anyone give me any advice on this as the doctor seems like i am a pest. Have had this weeks,now and cant get a proper sleep with it