Mental Rash

The raw mental state created from repeated exposure to unfavorable conditions, as often happens when you dislike your job.
Also, the unfavorable condition itself that causes such a state.

I'm so glad I quit my job today, it's been leaving me with a severe mental rash.
or
I hate my job so much. It's nothing but a mental rash

by Dave-Landon October 24, 2016