Early Film Shoot

at around 2am this morning i woke up a little bit anxious. ok, alot anxious. my film shoot was to begin at 4:30 but the anxiety came first. i lay in bed while my mind raced and worried for an hour and then some. i dozed. at 3:45 i got up went to the bathroom and heaved a little bit. some bile and most of the anxiety left with it. i do that whenever i get superstressed. i took my shower. i went to our location and began setting up. the talent arrived around 6:00 and around 7 my mind went soft-focus. we finished the shoot at 8:45 and i drove one of the talent back to his dorm. i have just come back from my 9:30 class. it is 11 and i don’t know what the hell is happening and i don’t care i’m so tired. not just tired, not just fatigued…i’m non-functioning, but that’s not right either. is there a word for what i am feeling?