Irritability is the worst! When I'm not on my med, I've been known to cry in the laundry room because my boys left their socks turned inside out! Is that stupid or what? But like you said, every little thing is magnified when you feel this way.
I can't even stand the radio to be on in the car! I get so angry that I'll be walking through the grocery store and think to myself, "I just wanna knock over that perfectly stacked aisle!" Yikes!!!!
And caffeine, ahh, that makes me a raving idiot. If I have one cup of regular coffee, I will chew out everyone in my path.
I hope this feeling goes away soon because I know it is no fun.