Hi,

I can't tell you where to go next; all I can do is tell you that I had similar symptoms for a year and since the swelling went down on drugs and the lymph node biopsied negative no one was concerned. Now the bad news is that when the doc and I finally said let's just remove this node it's annoying! he found a tumor underneath wrapped around my carotid artry and jugular. Second surgery was the neck disection to find the cancer site.
Your doctor and Brian are probably right, and there may be other people that can come on and tell you what a possible next step is if you are still concerned.
I wish you luck.
Take care,
Dinah