Spelling problems

(Chapter 6 Living with a Memory Impairment in my book)

Today I was typing on my computer, as I often do. I forgot how to spell the word “why”. I remembered the “w” and the “y”, but the “h” was not familiar to me at all. I know that before MCI I was an excellent speller, so this is just another thing that I have had to get used to since MCI invaded my life. I think that I just kept typing but I typed why like this "w?y". I think that eventually I was able to figure out the correct spelling of why.