Yes yes yes. My psych nurse said it could be my medication. I have not seen the doctor yet but have a physical coming up. I call them internal tremors or quivers. Mine comes in spurts. I'll get them for a few weeks then go months without them then they come back again. I was worried it was a seizure thing. Because it happens so little I never think to ask my doctor when I see her. I hope you get it figured out.