That is scary . I have some similar stuff but it passes pretty quick. Not knowing date or year, I wrote the date was 2005 recently, only to correct it to 2006, then to oh right 2016. I can be driving somewhere I've been going my whole 40 years and not know where I am, a general idea where I am, but make a wrong turn and get very confused. Sometimes I look at road or street signs and it looks like Chinese characters. I've never had ect, and it also happened when I was med free last year. I took it as a sign that I'm overwhelmed. It passes pretty quickly for me though, so not near as serious as what you're going through.
Please do talk to both doctors about it if you can, just to make sure. If you're going to have general docs ear for a few moments why not.
And try not to worry about the teacher will think. I imagine they must go through plenty we don't know about, managing a room of 30+ kids, all day, every day. A couple of my best friends are teachers & I'm so glad they do it. I don't think I could deal.
Hoping you're ok