Thanks again! It makes me feel alot better

Hmm, not to x rays, just an exam. I researched it just because I feel I should know what I'm giving her, and make sure that in the rush of the appointment, I may have forgotten to ask questions, or may miss information. Yeah my "gut" feeling is I should get a second opinion. Not that I don't trust my vet, I just think I should make sure two doctors feel they would go about it the same way, right? The vet didn't use the fancy term, just called it loose knee caps (but I researched what yorkies were prone to before deciding on getting a puppy in the first place). She fell off a chest I have at the end of the bed. She had been so afraid of it until now, I never thought she'd dare try to jump! She's getting very brave which scares me to no end. She's been fine all along pretty much. She's eating normally, playing, resting for the same amount of time as before. I really can't say there's anything unusual about her behavior. That's why we waited to take her, because she really didn't show any unusual signs.
I'm sorry to hear Layla has this, it must be hard to see her in pain. I know it has been for us, and it is recent. Thanks again for your help!