Weird thing about the human body: it sucks. It's horrible.
I've been sick. I've had sinus and allergy issues for my whole life, but I got
sinus surgery a couple years ago after a persistent long-term infection. I
thought all my troubles would be over with that, but I've had other infections,
too, and a little phantom pain in the places where they punched through the
bone to let them drain. I thought I had another one, but the doctors haven't
been able to find anything. The mucus membranes look healthy. Whatever is
going on isn't an infection. So we're investigating allergies instead, and at
the same time just waiting to see if it goes away on its own. The least
satisfying possible medical conclusion.