hi i just got my new piggy yesterday,the **** is that he barely moves from the hidey house at all and i saw him sitting in the exact same position for 5hours he has barely touched any food even though the pellets i have are similar to what he had before i got him,he hasnt touched his veges and hasnt really drank any water,he is already slightly underweight so he cant really afford to be not eating any ideas on how i can help him??