This is not my first snake or problem eater for that matter but it is my first Ball Python baby...

We got our baby spider new years day and she still hasn't eaten. The breeder said she was eating F/T rat pinkies no problem. She has a very comfy set up with two hides and lots of vines. Her glass tank has aquarium matting around the outside to give her more secure privacy. She has gradient UTH heat cord with temps during the day are 80 and 90 with her night temps at 75 and 85. We check regular with a thermostat gun and a humidity level of about 75 with a shallow dish water source and daily misting. She has a pillow case for substrate because the breeder said not to use substrate yet and it freaks me out using newspaper because of the ink. So I don't think set up is the issue.

When she is out of her tank she is an active snake and not lethargic but she acts like her head is too heavy. In her tank she balls up on top of her hide. She has absolutely no interest in eating and shys away from food offered she doesn't even flick her tongue at it. We have tried everything but feed live. We tried braining it and actually got the goo on her mouth and still no reaction. I finally broke down and assist fed her yesterday. Though it was all good once I got it in her mouth she continued to take it down but then this evening i noticed that she regurgitated it.

So now I am at a loss I have no idea what to do with her.