It's spooky how many issues we have in common right now Alison!! I have been wracking my brain for the past few weeks trying to decide that exact question. I suffer a LOT of guilt for sending my little guy to daycare full-time. Plus I miss him a lot during the day. I know daycare is good socialization, but there are other ways to socialize your kids that don't involve being away from them for 9 hours a day.
On the other hand, I went to University for a reason, and while I'm not very satisfied in my current job at the government and would rather work in the non-profit community field, I do feel the need to socialize myself with adults, use my brain in the adult world (which really helps keep your mind off your disorder as you mention) and in many ways it feels like it keeps me busy and sane. I just can't make up my mind between the two extremes.
If you go back as a teacher, you would have some good benefits, like I do at the government, including stress leave etc so at least it would be a good field in terms of supportiveness. For me, I think ideally I would like to work part-time, so I'm keeping my eyes open for the right opportunity. You could consider that option as well - maybe start by going back as a sub or a part-time position if there are any available.
Hope you are doing well! I can't believe you were close to the tornadoes a few weeks ago... this has been a really bad spring for tornadoes around winnipeg, I'm nervous that it's only a matter of time before one hits us here! Not good for my anxiety levels!!