they make good points you definitely want to have a vet check it, sometimes they need a few days after being brought into a new environment(try leaving it alone for a few days), make sure it's getting lots of heat before feeding time. sometimes to stimulate my monitor i put egg yolk on the mouse's nose and pet the montior's back and that usually results in his tongue flicking out and he tastes the yolk and i give it a giggle and he wants to eat it. i wish you the best of luck!