because apparently there aren't enough common diseases for me to live in fear of...

here are 11 baffling medical conditions.

my personal favorite is cold uritcaria - you break out in welts and bumps when you are exposed to cold temperatures. i occasionally break out in hives for no apparent reason. the next time it happens i'll have to check that i haven't just been in a walk-in freezer or stuck my hand in cold running water. if this is my problem, i may need to knit more sweaters.