Your blog rocks! Thanks so much for helping us all out! Okay so I have a character and I need her to collapse/pass out after running, probably because she can't breathe properly (but she doesn't have asthma) and Im struggling with coming up with a reasonable scenario/injury/condition. Would being in a car accident harm the lungs in a way that would inhibit breathing? Would that cause fluid accumulation or something like that? How noticeable would an injury like that be before running/exercise?