My Bernina is brokened.
It just stopped in the middle of a stitch run like the needle had hit something, but it hadn't. There are no visible obstructions or disconnected parts & the problem seems to be with the upper mechanics, so off to the bernina doctor it goes. I guess.
And I was about 2/3's done with my project for Winn's gallery on Friday.
On a slightly happier note, however, the inner workings of a sewing machine are incredibly COOL.