Well as I posted in my original post regard Portia having strange behavior and being scared, I also later found her tarsal joint swollen. Not hugely but noticablely and she was limping on it a bit. The vet called a week ago to check and see if she was having the strange scaredy behavior...she wasn't but I told the vet that I found her joint swollen on her left hock. Today I took her into the vet for a look. The vet thinks it may be a small tear around the tarsal joint but not sure. She suggested xrays but at this point we just do not have the money for it. It would cost close to $500!

SO the plan of action for now is to keep Portia quiet, no jumping or running. She is on a small dosage of a sedative to help keep her quiet. They also put her on Rimadyl and another pain anti-inflamatory med. I can't remember the name of it. We will need to keep her quiet for 4 weeks and then go in for a recheck. If she gets worse come in before then. At 4 weeks if things aren't any worse or any better then we will discuss other options and perhaps have the money by the to do xrays. We are hoping it isn't a tear and that she will heal. The vet said if it is a really small tear or strain it will be 6-8 weeks to heal. Surely by the 4 weeks we should see some kind of improvement if this isn't a major tear.
Have any of you had this happen???