I don’t think a lot of people understand how frustrating memory and concentration problems are. It’s not cute or “ditzy” or whatever to forget what you were doing or thinking about moment after you were doing it. Being unable to complete a task or thought because you can’t remember or focus long enough to finish it is a terrible feeling.
The same goes for having word-finding issues. It is incredibly frustrating to know what you want to say but not be able to express it.