You could probably send that photo to your vet and get a more educated guess than you'll get from anyone here. If they determine its a potential emergency, they'll likely find a way to get you in sooner.
For the safety of your dog (and to avoid possible liability issues for the forum) forum rules do not allow members to ask for or offer a medical diagnosis in lieu of a vet visit.
For the safety of your dog (and to avoid possible liability issues for the forum) forum rules do not allow members to ask for or offer a medical diagnosis in lieu of a vet visit.