IMO Ball Pythons do not need to be in the 90s. Remember their natural surroundings. During the day they are in holes where it is cooler and more humid then it would be above ground. 88 to 89 warm side is the way i keep all my ball pythons.

Now this does sound like a stress issue. you could do a few things.

1) Leave it alone for a week without touching it. just make sure it has water. nothing more. Feed at night after this week of being left alone.

2) Try a live to jump start it again. It shoudl only take on or two feedings to get it going again.

3) try a prekilled mouse not F/T

Make sure the hides are on both sides of the cage. This is just as important as temps IMO.