I recently acquired a Thayeri x Nelson's. After almost 3 days in my house it vomited a pinkie

after 3 days that pinkie should have been digested.

Up your hotspot and feed it again in a week.. this will allow time for the stomach to settle from the recent regurge.

\Normally I would tell you to administer flagyl. But the undigested pink tells me you had the nake too cool.

Makes ure you DO NOT raise temsps in the entire enloser.. What is best is to offer the snake a large variance from cold to hot.. the colder the room is the better.. so when you have it 72 on one end and lets say 90f on the other e nd. this gives your snake the choices in temps to digest it bolus with varying degrees and different stages.

A forced one set temp is not optimal.. and especially now that your snake regurged you need to manage the husbandry a little better. If you feed too soon or you don't offer a high to low temp gradient , then it could regurge again and if it does then you will have a p roblem...second regurges are not good.

also don't forget these dry out and get dehydrated very easily even though they may have a water bowl at their disposal.. snakes don't drink much in the wild.. they maintain their water by being able to choose more humdid places underground.. so provide a small humid box as well.
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FR quote:
"Doing the same things over and over expecting to learn something else, is the definition of insanity"