How's she doing now? I'm in UK so we're on totally different time zones....sorry for not responding sooner.
The falling over when looking up bit may be imbalance because she's new to walking and is hampered by the shoes or it could be a touch of wry neck...like the chick pictured above, in this case caused by being stuck in the shell too long, which also commonly leads to the curled toes so it may be related. I sorted her neck out (and as you can see, it was very badly twisted, almost an S bend) by gently taking hold of her head, behind her ears and moving her head around in a circling motion, two or three times a day, to loosen up the muscles.
Is she fully dry and fluffed up now? Sometimes when they have got stuck or have taken too long or there were humidity issues during incubation, they end up with egg goo on them and it dries off to form a sort of slightly crispy cover over their fluff. It will hamper her ability to keep warm and also her ability to move freely. If this is the case, you need to bathe her and dry her off. The chick above also had this problem and she got run under a 'baby warm' faucet and very gently brushed with a child's paintbrush while there, to get rid of the goo, then oh so gently patted dry with kitchen towel and put back in the incubator to dry and fluff up properly.
As for the yolk, hopefully that is better now too. It may be that she doesn't absorb what remains and it will, instead, dry up and fall off in time. Just keep an eye and apply a little Neosporin to prevent infection (the type WITHOUT painkiller)
I hope she's doing much better today anyway and I wanted to reassure you that although it's not always a positive outcome, it certainly CAN be as my little lady above proves. We named her Penguin, due to that penguin-like stance she had to begin with, caused by her horribly twisted neck. She had exactly the same issues as yours (including the partially unabsorbed yolk) and a severe neck issue and she was as right as ninepence within a week and grew up to be a beautiful Buff Orpington girl who then went on to be a great momma too. TLC can go a very long way xxxx