Sorry to hear your beardie has you worried. How old is your beardie? Depending on the age... some beardies just go through phases of inactivity.
If you want to go over your set up with us, maybe we can help you figure out what might be going on.
What "brand" and "type" UVB? fluorescent tube, compact/coil, mvb?
What are the temps on basking and coolside?
What type thermometer are you using? digital w/probe end, stick-on type, temp gun?
Is your beardie eating? What and how often?
Is your beardie pooping?
Are you
bathing for
hydration?
Are you supplementing with Calcium and multivitamins? How often?