One thing not mentioned yet is humidity. A lot of folks overlook it, but for many reptiles, even a slight drop or spike can mess with appetite and digestion-sometimes more than temperature or lighting. It’s worth double-checking your enclosure’s humidity levels (and the accuracy of your hygrometers, since cheap ones can be way off). Tweaking that, along with a consistent day/night cycle, has worked wonders for some keepers I know.