Hi Maz!
I'm so sorry this is getting in your way and frustrating you so much. ((((Maz)))) As a fellow teacher it breaks my heart because I know just what you mean. I've done the same thing so many time I just don't count them. A couple of things I learned to do over time were:
first, as mentioned above...laugh!! at yourself. No, this isn't funny at all but if you forget 1/2 of a sentence or thought or just one word the kids are uneasy too and, as you know, they take their direction from you. I know it's hard but try to make lite of it. I would make comments like...the only reason I carry my drivers license is so I can remember my name!...lol Or I inherited my bad memory from my dad...you know...what's-his-name.
The other thing I did on occasion when my fog was pea-soup thick was to have a talk with my students. I was teaching college so their level of understanding was different than elementary kids, but you know the words to communicate to them what you are going through. Don't be shy about
telling them you have a 'muscle disorder' and along with it you sometimes have a hard time getting the words in your head to come out of your mouth. Ask them if they've ever experienced it before and I'll bet they'll all have a story. Bring them on board and it will be so much easier.
If you are having an especially bad time one day just excuse yourself and get someone to watch the class for 15 minutes, then return and continue on. Tell them you were on spring break...lol
No, this isn't going to go away. I hate that!! But you can work 'with' it and have a wonderful life. It will take some relearning on your part but you can do it...I know you can! If you can handle teens that are walking hormone bombs then you can handle this!!..
I had several more thoughts and every time I would back up to start over again I would forget them. Believe it or not this is the short version.
Hang on <extending hand> and we'll make it together!
Chutzie