yes or no

i'm scared for my MRI that i conveniently scheduled for 9pm tonight just so i could be anticipating & dreading it all day... that was a brilliant idea. hopefully i answered all the pre-MRI questions correctly. for example, i'm not sure if i'm claustrophobic because i've never had an MRI taken before- how am i supposed to know?! i'm freaking out! and yes, i have had a metal object impaled in my body before- sewing machine needle right through the finger, does that count? i wish the questions weren't just yes or no... how about if yes, explain. that would be better!