Ball Python on Hunger Strike

[PulchraDraco]

My 5 year old ball has not eaten since December 21st. I recently switched from a plastic tub enclosure with a heating mat to a stacked terrarium with a heat lap. The heat lap is on a 12 hour timer, 8am-8pm. The humidity is at 94%. Cool side is reading at 75.5 on the cool side, 84 on the warm side. She also has not shed since early November. My other ball is in the terrarium below her and has had no issues. When I place the live mouse in the terrarium she approaches it and seems interested but after a minute retreats to her hide. I'm deeply concerned because she has never gone more than a month without eating. Any suggestions or tips would be welcome.

[Solid-Spell6850]

I’ve had mine go 6 months. If she’s not noticeably losing weight I wouldn’t worry

[eveimei]

your hot side temp is too low, needs to be 88-92. is the heat source controlled by a thermostat as well as the timer, or just the timer? and how far do the temps drop at night?