I found out what the problem was.
I came in and the house felt so hot I just stripped down to my long johns and let the dogs out, got a phone call, made a phone call, fixed dinner, etc. I must have been sweating more than I thought, and the sweat cooling off chilled me.
My internal temp gauge has been off ever since, though. It's been below zero, and I haven't had that "it's cold" feeling as I've been running errands. But once inside, I'm chilled. Very odd.
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