Why not use any conjunction to join these parts?

1. She wiggled her fingers in front of her face, felt the air move, saw nothing.
2. She closed her eyes and steadied her breathing one two three, drank in the quiet, reached out with her hands.
Source: Game of Thrones

Hi, dear teachers. I am a little question about these two sentences. Why doesn't the author use "and" to join these verbs (e.g. Why not "She wiggled her fingers in front of her, felt the air move, and saw nothing")? Are the underlined parts parenthesis?

Thank you in advance.