Sick bearded drgaon?

I got a juvenile female bearded drgaon in February and she has been doing really well. Although recently, she has been somewhat lethargic. She stays in her cave that she sleeps in for a really long time. In the evening she'll come out but when I get back from school, she's still in there. When I offer her food, she perks up and eats it. She poops and eats pretty normally. Her skin seems only a bit wrinkly sometimes, could she be dehydrated? I provide water for her everyday. She rarely drinks from it. Sometimes she poops in it though but I clean it out when I see it. Does anyone know what could be wrong with her? Pls help :)) thx

Oh and also I'm having trouble giving her baths, she always hops out of the tuber ware! Any tips?