I really try not to give into my irritability but it feels like trying to act healthy when you have a really bad fever. 
I live with my mom and we don’t have a close relationship, she makes snarky/unnecessary comments or answers poorly sometimes and I have no grace or ability to ignore her comments or to not let it affect me. 
It changes my mood and I become irritated enough to be curt (imagine a stereotypical teen portrayed on tv or a rude cashier). Then I spend 1-2 days caught in the effects of it. 

Sometimes I just feel irritable for no actual reason, just because. I don’t know where it comes from. Sometimes it’s stress. I don’t want to be like this and I don’t want to engage but I also don’t know how to stop feeling this way. 

Thank you.