I've been irrigating for the last few months due to some sinusitis and
its improved the situation nicely.  Unfortunately, I appear to have
gotten some of the solution up my left eustation tube a couple of weeks
ago and although it seemed to leave the ET I'm feeling some fullness in
the ear now and have for the last 10 days.  Its hard to describe the
sensation but it feels as if there's a little numbness on the outer ear
canal as well.  Hearing may be slightly impaired, but all of the
symptoms are modest and sometimes seem to go away and then come back
often after waking up.  It feels as if there may be some fluid in the
middle ear though because I can feel/hear the rattle that comes from me
humming certains lower notes.

I don't know whether this is an infection or what, but does anyone have
any suggestions?  I've since stopped irrigating, naturally.