Hi, I work at a dog daycare/boarding, and while I am not an expert of dog behavior I do see a lot of it. Now she very well may be scared but I’d like to offer a different perspective maybe to ease your mind.

Often times the dogs that come to us are nervous cause they know they have been dropped off and their parent is seemingly not coming to get them for a little while, and that makes them sad, nervous, scared. But even then they do want pets and attention from staff. We have many nervous babies at my job that love to be pet and will come up to us for attention, or even if we go to them for attention they will roll over and show their belly with a nervous little tail wag. While this is  submissive body language, they do still want to be pet but they are nervous, I can usually tell they want to be pet because I always check first and back off a little just to be sure, and they usually come crawling, wiggling over, and often give a little hand lick or nudge that lets me know they do. I guess it’s become easier for me to tell what dogs do or don’t actually want to be pet, but the ones who don’t usually are stiff, and have a dead lock stare when they roll over, their tails are usually tucked and not usually wagging, even at the tips of them.

If your worried I do recommend having someone get her cause maybe boarding is just too much for her, and your dogs well being should always be the priority.