Word retrieval problems

Today was the third day in a row that I just haven't felt right. I know what the feeling means because I've been having a few problems during each of my shifts at work. It is happening when I'm working as a cashier at a retail store. I think that I'm forgetting things and this is not a usual thing, since I've been doing the job for a little over four years. All of the tasks that I do related to this job should be in my long-term memory. I just hope and pray that this feeling leaves me tonight and I can go back to my normal tomorrow.

I was just talking to my daughter on the phone. One minute I can think of a word that I want to say, then a few seconds later, that same word is gone. Poof!! I ended that phone call pretty quickly because I really didn't want to deal with the problems that I was having with word retrieval. I know that it isn't my fault, but it still can make me feel stupid! It certainly has been a really challenging week for me.