Today's story is set in a gym. Why is your protagonist having blurred vision? Is she pushing it too hard? Why? Trying to tone up for a fast-coming date/deadline/competition? Maybe he doesn't know how to take it any slower than push-til-you-pass out or he's crying over a break-up. Gas leak in the gym or something more nefarious, like poisoning? Write a little Flashy Fiction that explains the blurry vision at the gym.