I have a constant taut muscle / tendon in my neck (no pain at all associated), it starts just under my ear at the point of my jaw and runs in to my collar bone. I have asked my doctor what it is, but he has no idea, although he seemed very worried by it and asked me to come back in 10 days, although he wouldnt tell me what he thought the problem was, or give me any vague idea as to what was causing it / what the implications may be.

please could you let me know what this may be and any problems that may occur from it, as im starting to panick quite severely over it now.

Many Thanks

John.