Hi Catch,
Just want you to know that I feel for you and I understand !!!
Memory issues are my biggest problem with working and even what you have just described with counting the money then not finding it - I have done that sort of thing too. I guess that is also considered a memory issue - that is the bucket that I throw it in when it happens to me but I know it seems a little bit different because you remember seeing something and then it isn't there just minutes or an hour or so later !!!!
Now I will tell you just how far my mind has gone with this sort of thing... For a while - I was nearly convinced that I have a ghost or something in my home because I would look at something and then 5 minutes later look back and can't find it, then drive myself crazy looking for it just because I know that I just saw it !!! I finally just accepted that it is all part of "the new me !". I decided to just accept and go on or I would drive myself crazy trying to figure out what was happening.