Actually she was jumped on but I cannot change the title. Today my dog and I were sitting on the couch, she was sleeping and laying on her side. My mother in law's Chihuahua mix thought she heard a car door slam, she ran and jumped onto the couch and I didn't see everything that happened but I think she jumped onto my dog, where I do not know if it was her side or if she even stepped on her and just spooked my dog, but what I do know is that my dog, startled jumped up and barked, when I tried to grab her she barked at me as well, she might of just been scared. I checked her body and she seems to have no sore spots. She's sleeping right next to me now and seems to be acting decently normal. She was panting but she could just be hot (it's warm in the room and my other dog is panting). I am just worried because my dog is 11 years old, she is on joint medication and she is very delicate. She is a jack russel terrier, about 16 pounds. She and the Chihuahua are about the same size, the chi maybe a few pounds lighter. I don't know if I'm being ridiculous, but do you think she's okay? Does it sound like it would cause much damage? Again, I don't know how hard she stepped on her or even where, but it still worries me.