When is the irritability supposed to end?! It’s been days since I’ve hit a nicotine vape and I still feel just as annoyed/frustrated/pissed by everything. Any small inconvenience makes me want to scream and cry. Can I expect this to go away with time, like an extended withdrawal symptom? Or could this be an underlying issue from before I started vaping that I just didn’t notice 
It could take a couple weeks. I quit smoking cigarettes in August after years of smoking. I’m so glad that I did. Try to avoid people, places, and things that are going to p*ss you off or stress you out for now. It does go away. I doubt that you have issues that you were unaware of. Try to stay chill.