Losing chunks of time (the fog)

(Chapter 9 The Fog & 13 Interaction with Spouse or Significant Other in my book)

Monday night, when I was talking to my boyfriend, he was referring to something that happened the day before. I tried to search my brain for what he was talking about, but it was just not there! When I told him this, he said that on Sunday I seemed different, strange, as if I was far away, rather than with him. I told him that I didn't even remember seeing him on Sunday. Somehow, I don't even remember going to bed. I guess that I must have been in a fog, but it was so deep that I didn't even realize that it was happening.

I know that this has happened before, when I just can't remember a chunk of time that I've lived. If someone doesn't ask me a question or talk about a time that we've spent together, then I have no way of knowing that the fog had rolled in. I have no clue how often this happens, but all I know is that it does.