I’m BP1 and was recently diagnosed last year. I recall that before I got too far into mania, like the beginning stages- I remember that I was just extremely irritable by the most dumbest things. I can be irritable normally of course, but it’s definitely amplified more than normal. And then of course it goes to lack of sleep and racing thoughts.. etc. 
But I was wondering if that type of irritability is probably a warning sign.
What are your early warning signs? Or is it too difficult to recognize and come out of once you’re in it?