Hello! I think my vielded chameleon may have gular edema around her neck. She has been very healthy with a great appetite which may be part of the problem. She also could be fat. She just turned 2 years old. She lives in a 4 X 4 X 2 repti breeze cage. She has a misting system that mists her hourly during day light hours. I have a reptisun 5.0 light and a basking lamp also that come on at 7am and go off at 6pm. The reptisun is changed yearly. I dust every day alternating with regular calcium and calcium with D3. Once a week I dust with a multi vitamin. She eats 20-25 crickets daily. She has laid 2 clutches of eggs with 100% survival rate and the egg quality is great. I did however notice a small bony lump on one of her back legs that has me concerned with MBD, however, I'm not sure what more I can do other than direct sunlight which is very difficult for me to do. Hope I'm not causing more harm than good. Love my guys! The other 3 are doing great.