Sorry to hear you're in such pain these days. It sounds like an immunologist wouldn't be a bad idea to help in your case. I've never thought of it before, but it makes perfece sense that an immunologist would work with autoimmune diseases. The problem I see with it is there aren't that many immunologist out there. Depending on where you live, it may be very difficult to find someone specializing in that field.
I wondered about sinuses/allergies when taking Humira. It seems that since I started Humira 3 months ago, my allergies have gotten much worse. No infection or virus, just normal nasal allergies. In any case, I hope your visit to the immunologist pans out for you.
i think seeking a consult with an immunologist would be a great thing to do. they specialize in the way the immune system works. i think the doc would get down to the nitty gritty as to what was in your system in the first place that caused the reaction you had, will find and treat any bacterial infection going on at the time, sort out any latent viruses or any funny stuff floatin' around in your blood.
if anything, perhaps this specialist will guide you and point you in the right and next direction to take in treating RA.