He had been sleeping MISERABLY the last few nights and I thought we were back at the worst of the colic. Screaming all evening and carrying on.
It didn't even occur to me that he was teething. Duh.
In my defense I will say that he had the same almost-tooth-bump on his gum in that spot for a month or more. I gave up waiting.
Anyway, a tooth! And now, hopefully, sleep!