I have the same problem. Short term memory problems, spelling, and what I would characterize as Dyslexic. Never had the problem before. My ability to memorize is what got me through college. Couldn't do it now. Before I was diagnosed, I thought I may have a brain tumor or something that was affecting these functions. No problem at all with my long term memory. Also, My attention span is not what it once was.
You aren't alone