Memorial Day vs Groundhog's Day

I completely forgot I was awake today until 2 and I just woke up and thought it was 7:30 AM and that I had slept since 7AM because what I remember is waking up at 7AM to go to the bathroom and going straight back to bed. I woke up and saw 7:30 on my phone and thought it was AM and that I slept the entire day and then I checked the date and saw it was 5/26. So, for a second I thought I was on a Groundhog's Day situation but really I just forgot the entire beginning of my day. I had to talk to Matt about this morning to remember anything. Wtf is happening to my brain?!