The only good part was that because of my swimming skill my first reaction was to close my mouth and hold my breath, otherwise I would have swallowed it all in a go right down my throat.
But the sudden darkness and pressure from the water were unnerving, even more without knowing where I was and how deep; so before I started to panic for the lack of air I quickly searched my surroundings between half-open eyelashes, and saw I distant bluish light coming from above.
I start pushing the water down with my hands, putting my muscles to work as I feel the air escaping from my nostrils faster than I would like. Once I reached my limits I clenched my teeth and closed my eyes, totally focusing in putting more strength in my movements, and finally broke the surface of the water while I took scrapes and uneven short yet deep breaths, swallowing some water in the process.
