I am new to this forun, so if this subject has already been addressed I am sorry. I have a chameleon I got about 4 months ago, store was un sure of age. I am guessing maybe 8 months. Lately he seems lathargic and around his neck it is puffy. I took him out side in the sun today & he changed to dark brown but didn't move around like normal just kinda kept his head down on my hand. I am mainly concerned about the puffy neck.