Ok, mopping up here. I think there are only spelling errors left, I didn't notice any grammatical errors.

She had hit the ship's wall hard, but the way her body felt was as if the had tumbled down a thousand step stairway. Something was off. Getting up was easy, too easy, especially given the way her body was aking.

the -> she
aking -> aching

The about sixty centimeters she got of the ground confirmed it.

of -> off

As Gwen looked around the room, the face of the old man was staring at her with an expression that could only be described as one of aw.

aw -> awe