Where to start..
1st. Read this - tonight. http://ball-pythons.net/forums/showt...s%29-Caresheet
2. Your tank set up is almost certainly stressing her. The tank's too big. It might help to throw a bunch of newspaper balls in there, along with blacking out 3 sides of the tank.
3. Do you have a thermostat or at least a table top lamp dimmer ($10 at Home Depot) on that UTH? If not, get one asap! Those things get really hot & she will get burned!
4. How are you measuring your temps? Is it one of those analog gauges from Petco? They don't work -they're very unreliable and inaccurate. Look at Walmart for a $12 digital thermometer to measure temps & humidity. I think Accurite is brand.