hi, i have a 4 month old panther chameleon and i am worried about his shedding habits. He hasnt shed in about 3 weeks, is this normal or should he be shedding more frequently? His humidity is around 60% and the temperature in his basking area stays around 85-90 and the rest about 80. He is eating like a pig, about 7 crickets and 20 flies a day. He seems to be growing and looks perfectly healthy but hasnt shed in a while. It is starting to worry me, can someone help please? Thank you.