WE HAVE A BABY IGUANA, ABOUT A YEAR OLD. ABOUT THE LAST TWO WEEKS IT HAS NOT BEEN DOING GOOD I'M NOT SURE WHAT IS WRONG. IT'S LITTLE BODY LOOKS REALLY SKINNY. THE BODY IS TWITCHING, AND IT'S NOT EATING BUT IT IS DRINKING. I HAVE DONE SOME READING AND I FOUND OUT THAT YOU NEED A UVB LIGHT AND WE HAVE NOT BEEN USING ONE OR A HEAT ROCK. PLEASE HELP MY SON IS A LITTLE UPSET OVER THIS.