I thought the same thing Jo did. It could be TOS. Fibro does cause neck and muscle problems though.

I have times where I can't hold my neck up from the Fibro and have had to get triggerpoint injections to calm it down.

Do read on the TOS though. I read somewhere where Fibro or RSD can bring on TOS because of the way we hold ourselves with the fibro problems in the neck and arms.

Ada