nothing, I was just driving home in Dad's truck, and a blister on the top of my lung popped, creating a tear in the lung allowing air to escape and not allowing lung to fully expand
and lemme tell ya, it hurt like a mother of pain...plus the quick shorts gasps of air, loss of left side ( left lung collapsed ) and the constant pain of trying not to curl over and breth deep
oh and sneezing..thats just plain harsh pain
but on the up side of it, another 4 scars to the collection

but the down side of it, I filled up 2 of the thingy's that measure how much fluid is pulled out of the tube, 2 outta 6...the other four were partially filled before being changed due to them falling over