I think it is very easy for my students to tell when I'm in a bad mood.

Especially when I kind of snap at one when he basically tried to tell me the wording of my question was bad, even though I've told him multiple fucking times to not do the exact thing he did on his problem set.  For some reason he doesn't want to use 0 as the base number and I do not know why.  Just fucking use it stop being difficult for no damn reason.

I feel a bit bad - it was very obvious I was in no mood.  Usually I am a bit more entertaining and dynamic in my teaching, from what I've been told.  Today I was very...bland.  I am just tired, honestly.  I want to go back to sleep, but I know I can't do that either. 

And I feel bad for still not wanting to talk to anyone.

...

Maybe I should see if therapist has any openings today.  I feel bad bothering her but.