Just "not feeling right"...any ideas?

I don't know what these are, so I am hoping maybe someone else does. I have been diagnosed with psuedo-seizures, which involve physical movements. Haven't had one since I left the hospital (two months ago), and am working w/ a shrink. Good deal. However, yesterday I had an experience that has happened before where suddenly I don't feel quite right, and I can't focus on my work. I wanted to get out of my office and do my work in case it was psychological and made worse by my focusing on it, so I went about my business in other parts of the building. I was talking to people about issues and I was having the hardest time keeping straight what we were talking about. I was getting confused and saying some silly things that I should know better about (work related, but totally off-base from the reality of situation). Really struggled to keep on working during that time. Lasted about an hour, maybe only a half hour actually. As I've said, these have happened before, but normally accompany a type of "click" in my brain where suddenly I can't listen to someone talking to me and I just need to be left alone for a minute or two, but when I get back to normal I still have a hard time functioning for a while after. Any ideas?