She looks fine, but just in-case, have you measured her 3 temperature zones recently? And what type of thermometer do you use to measure her temps with (stick-on, digital probe, or infrared gun)?
The reason I'm asking is because they darken themselves purposely to absorb more light/heat, so if her temps are too low then she may very well be staying dark all the time to try to absorb more heat. In addition, when they are too cold, they usually do slow-down their movements/motions and become "lazy", so with this combined with the constant full-body darkness, I would definitely be measuring her Basking Spot Surface Temperature (between 105-110 degrees F for a juvenile under a year old), her Hot Side Ambient (air) Temperature (between 88-93 degrees F), and her Cool Side Ambient (air) Temperature (between 75-80 degrees F), and you should be using either a Digital Probe Thermometer or an Infrared Temperature Gun and not any type of "stick-on" thermometers, as you have no way at all of measuring her Basking Spot Surface Temperature with a "stick-on" thermometer, they only measure Ambient (air) Temperatures, and in-addition, they are all very inaccurate, often off by between 10-20 degrees when tested.