I remember a dream, when i was in some water somewhere, and there were a bunch of bars blocking something.

I swam down to look, and suddenly i was trapped in the water, i pulled and pulled, and pushed at everything around me, and i couldnt breath.

I woke up with my face in my pillow literally about 10 seconds from death... worst feeling of my life, i didnt catch my breath for about 5 minutes.