Ok, so sometimes I get in this mood where I am sooooo stressed, mist the time I can't figure out why, I almost can't function, it makes me feel like I'm going crazy, i feel trapped and like ill never be back to normal, but then hours later it goes away and I'm fine, but during these stressed hours I'm naseous and can't eat or think straight and I get really fatigued until it goes away, what's wrong with me?