I've noticed the last few days that I have quite a bit of congestion
in my right sinus cavity and some intermittent throbbing pain in the
lower portion of it.  Noticed yesterday that I have a small lump
(about the size of a pea I think)in a corresponding position on the
roof of my mouth in the hard palate area.

Is it possible that I have a sinus infection that is causing this
lump, or could it be some sort of growth or something?  This is
completely new and is worrying me.  I do have an appt. with my primary
care doctor tomorrow and will ask about it then, but I was wondering
if anyone has experienced something similar?

Thanks!