My dragon has been doing that as well the last few weeks. He is a little more than a year old. Two weeks ago I moved back to college from my home in Milwaukee (roughly a 4-hour drive). Usually Nox just mopes around for a week or so after we move, but this time he has been nosing around the glass and attempting to climb the walls. He has even been doing that in his weekly baths! I have a video of what his behavior looks like; how can I attach it here?
I haven't been feeding him any differently since moving (giant mealworms are what I can afford at the moment), and his lighting hasn't changed either (100 watt floodlamp for heat, Reptisun 10.0 UVB, and a CHE that is on 24-7 during winter). Perhaps it is change in house temperature? My college house is a little warmer than at home, but his thermometer shows lower temps than they were at home, which is strange (normal temps at home, but only in the low 80s here...I wonder if the thermometer needs a new battery?).