be not (oneself)

be not (oneself)

To not feel as one normally should, either physically, mentally, emotionally, etc. I'm sorry for getting upset at you earlier, I'm just not myself today. I know Mary hasn't been herself ever since she lost her job.
See also: not
Farlex Dictionary of Idioms.
See also:
  • be not cut out for something
  • address (one's) comments to (someone or something)
  • address comments or remarks to
  • address (one's) remarks to (someone or something)
  • be in it for
  • be at a disadvantage
  • at a disadvantage
  • be pressed for time
  • a run on (something)
  • be pushed for time