the vet concluded nothing, except "maybe" Panosteitis - (but i don't feed her puppy food, she's a medium sized dog, and that's common in large dogs).
Nothing at all conclusive. As in, the vet kind of shrugged and said "no running/exercise for 2 weeks, here's some Rimadyl, 1 every 12-24 hours. Pretty much watch, wait, and hope it just goes away" - whatever it is. I already did that for 3 days BEFORE going to the vet...but ok.
So that's what i do. I watch her. Constantly. I crate her, as much as it seems to pain her. When i go to let her out, she can't just get up like she used to. Her two back legs sort of stick out straight below her and she can't seem to just spring them under herself without a considerable amount of effort.
My husband and I went out tonight and got an octagonal playpen and put her bed in it, got a new bed for her crate for sleeping, and i'm going to keep her in the pen while i'm at home. This will keep her from running, and let her stretch out and play comfortably without being cramped up in that crate all the time. (to be clear, her crate is the right size for her, she CAN stand and turn around in it, it's just hard for her to do either one right now because of whatever is going on with her).
No one concluded it's a pinched nerve - i'm just guessing - which so far seems to be all anyone, even the doctor, can do. We're planning on going to another vet, as I'm not at all impressed with what I spent $200 for at my current vet. I can't think of a whole lot of reasons a 6 month old puppy, who was able to bound around and jump on furniture a week ago, to suddenly be so injured she cannot go up and down stairs comfortably.
If it was just something simple like a pulled muscle etc i would imagine that here a week later it would have cleared up. It's just very frustrating the vet simply took an x-ray and handed me Rimadyl, she may as well have shrugged and said "good luck, sayanara."