Thank You Abbie for answering, do these happen with PN.as thats what Drs and Neuro,s are saying I have.A lot of my symptoms are like PN.but there is a lot that dont,I dont think I have PN.never have but there is a lot of things out there with similar symptoms.Today I have noticed my head also nods but these jerks are here permanently sorry but i'm going to have to leave it here as the jerks have gotten worse...Liz.