OMG same! I haven't gone on any vacation but, my dragon suddenly is glass surfing again and not wanting to eat as well. It all happened after I wasn't able to get him his crickets for a day due to holidays and he only had veggies to eat for a full 24 hrs.
He's almost 1, but hates all vegetables I've tried with him and will only eat a mouthful or two when I offer it to him and only if I'm not looking. He gets mustard greens, and endive sometimes individual sometimes mixed together, and occasionally the freeze dried topper stuff if I don't have fresh. He picks through that for the carrots. (Idk if this is silent protest behavior now or what)
He pooped in his cage when I was at work and got home to it being smeared everywhere from him running along the glass. And ever since getting that all cleaned up he's not really been devouring his crickets like normal or eating much of anything just doing
black bearded sprints around the tank, which he hasn't done in MONTHS. (Used to when he was a baby) he calms down when I hold him but as soon as he's back inside, he runs. He also passed a super tiny poop the next day which is not like him.
He's in a forty gallon wide front opening tank, his temps have remained 100/80 hot/cool none of his decor has changed I use both under tank heat and over, coupled with a ceramic tile to keep the bottom warm. Dusted crickets are his first meal (when he's eating) every morning and I'll leave veggies for him in the afternoon to see if he'll eat any and before his bedtime he gets a few more non-dusted crickets.
If you figured out a solution or cause for your dragons issue please share it. For now I'm going to put up his "wallpaper" for lack of a better word.