Crestie Troubles

[concept3]

Hey Just a quick question, I bought a crestie last weekend, and when I got him home I misted him and he drank lots so I assumed he was a little dehydrated. He ate 4 crickets the first night I got him, then the next night fruit mix ect. He eats like a champ but he lays on the bottom all day. He never climbs up the side to hide behind the hanging plants( I have seen him climb the side, no problems their, ruling out retained shed) He just hides under the leaves closer to the bottom. He is a juvy, probably 4-6 months, His tail was dropped before I got him, and its healed right up. My husbandry practises are good (I have 7 other cresties Im not super noob). Ive been keeping cresties for about 2 1/2 years now, and I have never seen one act like this so I am a little worried. Any Idea of whats wrong? or is this all that abnormal? thx in advance.