My mother in law has had a day gecko for about five months now and she called me freaking out because it can no longer climb. I suggested that maybe it was a little deficient in calcium, but there is no softening of the jaw or other limbs. She did notice that some of his skin on his head is more gray than green, which I chalk up to stress. However, this gecko is very fat, maybe a little on the overweight side. Is it possible that it is too heavy? She has all the correct lighting, and feeds gut loaded crickets and tegu worms, but she has been very poor about feeding fruit regularly. Maybe once a month at best. I have told her to take him to the vet, but we live in the boondocks and I don't think there are any vets that would know what to do with a lizard. I think she will travel though, because she loves this gecko. The lizard is not lethargic, it just can't climb. It does not seem to have much interest in eating either. Any diagnostics or suggestions would be very much appreciated!