I had that: it was an artery being compressed. The worst times were when I was pregnant and just after. I guess the nerves were all compressed and this thing popped up. I also had vomiting, feever, headaches, extreme weakness... had to be out of work for months b4 it resolved itself.

Try ice on it if you can tolerate it. Rest a lot. Do anything you can to calm the nerves and reduce any inflamation you have.


Anne