I'm very sorry to hear of the death of your chondro. Sometimes there is no reason why...it just happens. If she was an import it's possible that she ended up with a parasite overload, or that parasites she'd had caused permanent damage. Without necropsy there's no way to tell exactly what did it. RI's can kill them in a day as well, but that sounded secondary to the original problem.
-----
3.2~Cornsnakes
3.4.2~Green tree python
3.3.1~ATB
1.1~Sibon Nebulatus
Dogs, cats, horses....
www.franclycac.com