My dog Max woke up this morning and is having a hard time walking he was fine last night, his stool is fine, he still wants food. Hes half german sheppard half beagle. Hes 9 years old and is very happy and active. When we try to touch his bum around his tail and hips he squeaks and crys. He will walk two steps then he sits. He also cant seem to lay down comfortably he prefers to sit. We are very worried and will be taking him to a doctor tomorrow morning what should we do for the time being to ease this pain, and what could it possibly be?? Please help me!