"Brain fog" is the not-so-scientific name for the inability to focus and recall things. It is a cognitive deficit. It has to be one of the most frustrating things that fibromyalgia syndrome warriors deal with every day. I send kudos to those who can work a 9-5 job. I don't know how you do it. I would really struggle trying to recall instructions or conversations. We all have difficulty concentrating, especially when we're tired. It can be difficult to find the words we're looking for. Carrying on a conversation can sometimes feel like an Olympic event. We have difficulty remembering where we put things, words and names, etc. It is so frustrating. We say things like, "What was I just talking about?" "What did I come in this room for?" We forget directions to someplace we've been to many times. I heard about a of fibromyalgia pas and brain scans showed they don't receive enough oxygen in different regions of their brain. One of the possible reasons is that part of our nervous system is off-kilter, causing changes in the brain’s blood vessels.