Something feels ’off’ …

I woke up at half 5 hot due to the weather. I have a headache due to heat. I took painkillers for it but it barely touched it. I don’t think that I slept well. I remember waking up several times. There just seems to be something off this morning. I feel like crap due to monthly but it isn’t that, The outside world and general feel of existence feels changed. Even the cats seem like they’re picking something up, especially mister (he is just as psychic as me sometimes). I can’t be the only one that woke up feeling a change this morning?