Hi there, sorry to read about your beardie. Something very serious going on, if he did by chance eat something toxic he might get through since it didn't kill him. His symptoms are serious enough to cause death so I truly hope he pulls through this. It would not be related to the Reptiglo light which BTW is not a bad bulb at all. It's used exclusively by a top U.S. breeder [ Rainbow b.d.'s ] and I've used them as well as the Reptisun 5.0 [ before the 10.0 came out ] since the 90's.