Well, after another 12 hour night of getting up every few hours and waking up as exhausted as I went to bed, I called the doctor and left a message that basically said, "I can't DO this, Sam..."
I can't take anti-histamines during the day and Anti-Vert at night. I am a complete zombie, brain dead, space cadet, no-one's-home-come-back-later. So I didn't take any this morning, and just now I think I've gotten most of the Anti-Vert from 23 hours ago out of my system.
They're sending me to an ENT.