BP going under the door?

So last night I was letting my BP roam around on the floor in my living room. She was just going along the edge checking out the wall and got to the closet. I figured she was way too big to even think about trying to go inside there, but next thing I know she's trying to go under. Turns out there was a small section in the corner on the side where the door opens(as opposed to the hinge side) where the carpet was compressed a little and she went right for it.

I opened the door a little so I could lift it up and try to get some of the pressure off. She had twisted her self so she was upside down(probably easier for her to slide under the door that way) and she really flattened herself out.

After the thickest part got through I was able to slide her out from under the door to the side, and I checked her out immediately. There didn't seem to be any scratches or anything and definitely no blood, but what I'm worried about is could she have some how hurt herself internally?

Is there anything I should be watching out for to see if something's wrong?

Not to long ago my snake squeezed through a small gap in the top of his encloure and escaped. I found him curled up in the base board heat that I have here in my home. This snake is sitting at 653 grams and is a real fatty. I never thought that he could squeeze through the small spaces like he did. I very closely examined him for any scrapes or bumps and I can say that he was just fine after his little adventure. I'm sure your snake is just fine too but if you are concerned just keep an eye on the snake for a few days.