I know, I know... One of those questions everyone always asks: is your UTH regulated by a thermostat? If so, what temperature is your thermostat set to run your UTH at?
That digital thermostat on the hot side floor will really help to tell you if you're hitting the ideal "hot side" temps (90-92 where she's basking). And infrared laser thermometers are helpful, plus aren't that expensive either! I'm a worrywart mother and bought one for my little girl so I could make sure temps were consistent around the entire cage.
Overall, I'm really glad to hear you're taking such a good, vested interest in her health! She seems to really love all her enrichments.