This is the only bump on his body and it's been there since he last molted. Have any of you chameleon experts ever seen this before? I can't really feel it since his skin his rigid too and he won't really let be touch because obviously he doesn't want me poking him in the face! But could this just be skin, or does he have some kind of infection. Please give me your honest opinion and let me know if I should take him to the vet or not?