he seems active but less then normal he hasnt eaten since around mid march and its getting warmer and he isnt eating should i got to the vet at all maybe he has an internal problem he has pooped recently liek a few weeks ago he has no specific cage temps i use a light for warmpt and this is the first time he hasnt eaten he is in a 20gal long and he is about 30 inches long so should i try the vet he seems darker and his belly is pinker then normal