u/nonrealback

My Havanese is moving his head forward and licking. It started yesterday. Totally normal otherwise - He ate all his food, playing, slept through night… but he is doing this with his mouth as if something is stuck in his throat.. We are about to travel for 2 weeks and leave him in boarding want to ensure that nothing is serious. Can anyone please tell me what is going on? Should we go to the vet?