Himmel.
Himmel became acutely aware of the ache in his lungs - rather, the presence of his lungs. He remembered the feeling of the water filling them. There had been a moment beneath the waterfall where he had felt nothing, just after waking up and emerging from the chrysalis; his stone prison had been full of water too as it had gathered water as it had formed, and so for that span of seconds he had not noticed any danger. His lungs had been full of the pond water as they'd formed within the chrysalis. The pond had, effectively, been a womb.
But he also remembered the roar of the falls and the terrible strength of the water as it pushed him down, down, down. The scrape of his skin upon rocks in the dark. The struggle of kicking and clawing at his obscured surroundings until something in the wall gave way, pushing him from one pond to the next.
Himmel's eyes had closed as he'd begun to reminisce; these flashbacks overpowering everything. Now they flew open and he gasped raggedly, kicking a spastic hind leg out and spidering to his feet, off-kilter and wild-eyed. His entire body was shaking. The anxiety coiled in his gut now dominated every inch of him as erratic energy, but at least he'd forgotten about the fish.