I think it's kind of like aphasia. My dad suffered a massive stroke 6 years ago on July 17th and has suffered from that since then. He KNOWS what he wants to say, but just can't get the words out. I have the same problem (to a much lesser degree)......
I do believe it is the MG, not the meds, especially since we all seem to have it to some degree......oh (!) and talk about spelling! I wrote better when I was in the 3rd grade! Darn MG!
Hope this helps a bit~Erin