you may be seeing broken bones from metabolic bone disease. Cham started digesting own bones for calcium and nutrients. Please take to exotic pet vet! Keep in quiet, solitary cage, try to reduce opportunities for falls or more bone breaks. Make sure you are using at least at 5% uv light without any plastic or glass covers, flourescent bulb only. Make sure you offer dusted meals with quality supplement. Make sure cham can chose temperature in cahe, one cool area, one warm (90F). Have moving or misted water available but don't keep cham wet. Good luck.