My bearded dragon has started staying in one spot all day long. He started off doing it occasionally and would be super active while doing it. He'd look around, interact with me when I went up, etc. But then he has days where he just lays on his long and doesn't move much. He's been doing that a lot more recently. He's about 6/7 months old, he has a 40 gallon tank, basking side about 110 and a cool side around 85. His diet consists of reptiworms daily and I'm slowly getting him to eat his salad but that's still a work in progress. He has a reprisun 10.0 uvb bulb. His cage hasn't been moved around recently and nothing has changed around him. These past few days I've noticed full worms in his poop. What's going on with him?