Thanks everyone; I actually did get a chest x-ray, and it revealed nothing that the Dr. considered suspicious.

The sore throat has gone away, but the one symptom that remains is a disturbing tendency to inflate like a balloon after eating even the lightest meals. It's only a recent phenomenon; I was prescribed Relafen to combat what a prior Dr. thought was pleurisy, and I'm wondering if that could have anything to do with what I'm experiencing.

If not, does anyone know what could be causing this bloating? Thanks.