I Have Had A Few Instances In The Past Days

I have had a few instances in the past days where I am consuing words or saying random things. I was just in a meeting and a co worker mentioned that I said "I have 2 days to unpack". It was totally out of context and I don't remember saying it. the same co worker asked me what I was having for lunch... I had a container of oatmeal, but I said yogurt (I meant oatmeal, but what came out of my mouth was yougurt)