Cervical Instability C1 C2 Donald Corenman, .
· I get a lump in the back of my throat on the left side that comes and goes and I get muscle spasms behind my throat and just below my ear next to the jaw bone on the left side. The muscle spasms comes and goes.Grinding, popping, clunking sounds under my skull and in my neckRight after my accident my head would drop and tilt to the right. Now ...