Kerri, I did forget to add that I had a massage and shared the above info with her. She asked if I could make it spasm at will, which I can. She had pulled up a pressure point diagram of some sort on her phone (I bet you're familiar since you do this for a living). She deeply massaged a point beneath my shoulder blades and the cramping ceased immediately. It's nice to know but I obviously can't reach it. I have a foam roll at home if it's really bad otherwise I just don't turn my head just so...