I went to petco and bought a healthy ball python. I think he is male but not sure. I would really appreciate and put into practice any advice any one can give me. Since I have had him which has been about 4 or 5 weeks he has eaten about twice a week each week. His size has doubled and we put him in a bigger cage. He has started to get cloudy looking in the eyes instead of that galssy black color. Is he sick?