Yep, what they said. Your T will eat when it feels the need to eat. It takes months if not years for an adult T to starve to death so there is no reason to worry about a T not feeding unless there are other symptoms of a parasitic or other infection. Being winter, many Ts reduce their food intake even though they're not completely holed up.
you poke it with the soft bristles from a paintbrush, and watch it leap around in annoyance
Seriously though, don't worry if it's not eating. My C crayshawi female hasn't eaten in months, and her abdomen is plump, and she is active (moving dirt hahah!)