I've been typing sentences which, on reread, make little sense. I keep forgetting the vocabulary for the specific items I wish to discuss. My concept of correct grammar is floating in the ether somewhere (prepositions have suddenly become interchangable and random pluralisations occur.)
Once upon a time I was good with words. I knew a lot of words. I knew how to spell them in the standard manner. At the moment, I struggle to spell words I knew backwards at the age of thirteen. I use some of these incorrectly spelled words in the wrong context!
I would be fine with this if it was an occasional thing. It appears to be happening with an increasing frequency. Very soon I shall be communicating to the world through semaphore or mime.