How much of the day does he spend in his hide? Does he spend any time in his basking spot?
Can you answer some questions just so that we can make sure your setup is okay:
1) What
UVB light are you using?
2) How close can the BD get to the
UVB light?
3) What is the basking spot temperature?
4) What are you using to measure the temperature?
5) What temperature is the cool end of the tank?
6) What size enclosure is your beardie in?
7) What substrate is your beardie on?
8) How old is your beardie and what size is he?
9) What do you offer for food?
10) How often does he eat?
11) How often does he have bowel movements and what is their consistency?
12) Have you had a fecal done on him ever?