Wakboth:
Yes, it has, but I may be full of it. I Googled "caffeine allergy," and found out that there's no mention of vomiting, and the symptoms resemble severe schizophrenia. Other info is sparse. It seems from the article that general craziness results when you keep pounding coffee regardless of what your body tells you, so maybe I quit at the right time. I'm not making yet more doctor's appointments unless it comes back, but I'm laying off the caffeine anyway.

Gonterphiles/phobes:
It's amazing that he still seems to think that he's going to someday make a living doing...whatever it is he's doing. He doesn't even grasp the simplest concept of a comic strip: "Give them a reason to read the next one." If it's a humor strip, the last panel should be a joke. If it's a drama strip, it should be a mild cliffhanger.
Start here and click through a few and see what I mean. What happens? Nothing!!! It's the strip version of someone trying to tell a story by saying "It was Wednesday, and I was going to the grocery store--wait, no, I go to the grocery store on Tuesdays, so it was a Tuesday--anyway, like this guy's car comes out of nowhere and I'm--wait, no, I had to work that Tuesday, so it was Wednesday, and--no, wait, I went to the laundromat, not the grocery store, so...Wait. It was Thursday. Because, Thursdays, I always get a raisin bagel at the bagel store--Have you been there? The have these really great raisin bagels! Anyway, this guy hits my car and I get thrown into the steering wheel--wait, it was a raisin cinnamon bagel..."
zzzzzzzzzzzzz...