You fall over and plunge straight into the water, as you lie beneath the surface getting weak, sure that you will soon die from suffocation.
Strangely enough, you don't die and what's more, you seem to be able to breathe underwater! You try a few deep gasps in the midst of the water and just absorb the water as if it's air. You drift around for a bit, enjoying various underwater sights you never had a chance to see up close, going from place to place without the least bit of trouble, speeding through water as if your body cuts right through it. In fact, you have been feeling kinda odd, especially with the way you manage to breathe and navigate underwater, so you turn your head to have a look at yourself...