Not a medical concern personally, but ive owned a veiled for just under 2 years, had to give her up, and a panther that i owned for about 6 or 7 months right after being born. While your chameleon will stress you out, do not always overreact. If you follow the basic husbandry steps provided on this forums, 9/10 if your chameleon came from a reputable breeder, the care you will provide it based off your knowledge this site will instill in you, can lead you to have a very happy and healthy chameleon. A chameleon is the most stressful animal i have ever cared for, but when you keep it happy and healthy, it is also the most rewarding one to care for.