Creative Writing: Frigid Water

I'm submerged; submerged under the frigid water. I scan my surroundings and find an abundance of nothing. I'm stunned by the scene. The water, vividly clear blue, was motionless and breathe taking; but not a fish, plant or rock in site. 'How did I get here?' I thought.

Panic erupts and rises inside of me. My body acts on its owns out of fear. Immediately, I began swimming in hopes to escape this agony. I don't recall how I ended up here. Actually, I don't recall anything at all, but my name. Keith. Keith Osborn.

'What's going on?'

I struggle to emerge from the icy depths of the water. Although the surface of the water is in site, I'm unable to reach it. My body is exhausted and cold. My lungs are burning, begging for air, but I can't quit. 'I will not die here...' I close my eyes and summon strength to prevail over my predicament. I sway my legs in and out and thrust my arms in front of me. I push my mind, body and spirit to the limit, but despair grows inside. 'Why haven't I reached the top?'
I keep my eyes closed and attempt charge forward, but my body is on the brink of collapsing.
I let small moan escape my lips in the midst of my strain, swallowing a mouth full of water. I open my eyes to assess the situation:

I'm consumed; consumed by darkness in the treacherous water.

The surface is nonexistent. The water, no longer blue. There's nothing but darkness in the bowels. It was as if I never opened my eyes.

As I ponder my surroundings, I feel my lungs cringe from the lack of air. I wish to free myself however, I know I can't. I fasten my eyes tightly shut again and bring my knees to my chest and wait for the inevitable. I accept my fate and welcome my doom...
Death.

My body feels extremely light and in peace. Im not afraid anymore, I'm not afraid to die. I start to smile, but its interrupted.

All of sudden, my body begins falling. I can feel my body plummeting faster and faster into the deep Becoming heavier and warmer with each passing second. My heart begins racing, furiously pounding the back of my rib cage. I don't know what's going on or what's going to happen next, but I know I'm terrified.

I attempt to scream, but nothing belts from my lungs. I open eyes and instantly drop to my knees on the floor panting. The water vanished. 'What just happened?'

A soft whimper flares-up from my lungs. My body surrenders to the stress and I fall flat on the ground.

My vision is blurry. My body is shaking.

As I lay on the floor staring at my hand in front of me, I notice the white wall behind it and immediately I force myself to set up. ‘Where am I?’ I mumbled.