jaw muscle pain

when i open my jaw open slowly, it goes slightly to the right then back quickly, for weeks ivwe been getting
headache and muclse pain in the jaw   any idea whats wrong there or wahts happened?   the pain worsens when i lie down and the muscles tightens in my head, im having to take paracetemol every 4 hours and its getting on my nerves now, anyone know what it is, i have to wait till tuesday for a dentistt appointment

[Jerome Bogin, D.D.S.]

I would suggest that you find a dentist that specializes in TMJ dysfunction. It sounds like one or more of the muscles of mastication are in spasm.