Wally, I think she goofed it up first, but then you did too.
I can understand that your newborn has been through a really tough time, but I will bet that your EX really doesn't CARE and in a lot of senses, neither do the courts.
You say that you've always paid CS and that's good.
She goofed it up when she denied you time with your child and connected it to WANTING more CS.
You say in Oct you agreed to a settlement.
THEN you say that YOU changed your mind and added two items. It doesn't matter if they are justified or not, the point is that YOU changed your mind and added conditions to the agreement that was already settled.
What does your attorney say is the hold up?
The only thing that I can honestly think of is to withdraw what you added and then PRAY that she signs the order.
She's a schmuck for doing what she's doing 100% of the way, don't get me wrong. But you have an attorney, ask HIM/HER what the hold up is.