You've been busy!! Good job! Be careful about that back left corner, little ones can get caught in any open section, and it looks like there's a space there. But this looks just fine!! My birthing stalls were a bit "snug" being only about 8x8, and with that nice layer of straw over a mat, if you have to move her around if she's down, just grab a tail and pull her into the position you want. Good job doing what needs to be done first!
Now, we'll look forward to the pictures.
The restlessness is fine, and looking at the flank is fine too. She's probably a bit more uncomfortable than usual, and sometimes these little one lay on a nerve and really make them uncomfortable. Then they start pushing their butts into stall walls, fence posts and anything else they can back up into to push that baby around. Look for her to do some rolling also, as rolling is not colic, but rather moving baby into proper positioning!
We're very excited for you. The change in personality is quite normal, so don't fret. It just means she's moving ahead as expected.
You've done a great job! I'm looking forward to seeing more of her to help us help you know how close she's getting! She's so pretty!!