Does anyone experience a tightening in their throat occassionaly? This seems to happen to me toward the end of the day while I sitting (watching tv,etc.) My throat will start to tighten beginning at the base of my neck and travels up my throat. I'm afraid I won't be able to breathe so I change position and talk myside out of it. This is a little scary and I haven't told my neurologist yet. The VNS is implanted but this doesn't freak me out.