to the original Poster...I had a breakdown of a different sort. I am a teacher as well, and Post Surgery EVRYTHING and EVERYBODY seemed to cause me stress. I think not having food as a Coping Mechanism was a major factor. 3 months after my surgery I started having panic attacks at work, I thought I would haul off and smack a kid and expressed my concerns to my hubby, but eventually I flipped out and went Bananas (verbally) on a student. Luckily, they accepted me quitting mid-year. Whew!
I'm fine now, but NO DOUBT the surgery made me LESS TOLERABLE of my students off the chain behavior---and they were a difficult bunch to begin with.
YOU MUST find a replacement for dealing with stress, if Food was your go-to.