Fall From Height
It's like falling from a height.
Artur felt like he had lost his footing. His body felt separated from Robert next to him, the room he was in, the sofa he was sitting on, and the world he lived in. Artur experienced the feeling of "butterflies in the stomach" or emptiness for the first time.
The air seemed to be taken out of his lungs, his heart beating as if it had stopped, and the blood that flowed unconsciously suddenly stopped. He felt like he was floating and flying for a while, experiencing what it would feel like if his body had no weight.
But...
After that, gravity pulled his body downwards, pressing Artur to return to the world. Like being pushed by a load of hundreds of tons, Artur's body plunged downward. He suddenly felt fear, panic, and anxiety.