Ok's here is the update.
Poor Caroline had a mare of a day. Her car broke down so our 5:30 had to be pushed back. Thankfully, she was able to get a cab out, but the poor woman was frazzled. Her car is her business lifeline so she's going to have a tough couple days whilst it gets fixed.
So, it seems that upon examination it could be Lexy's knee. It is swollen but upon further examination it looks like one of Lexy's toes is also inflamed. Her claw appears to have an infection. During her run around her claw may have caught on carpet, tugged and pulled her knee tendons. So the toe is sore, as touching it resulted in me nearly losing an eye
So for now our challenge is to see if the toe is the cause of the limping and the knee inflamation is a result of that, or if the toe works out fine but the knee remains inflamed then we need to go the next step and see if it's loose. The knee is in the socket so she didn't dislocate it.
Lexy is now the proud host of various injections of anti-inflamatories (Metacam injection for 24 hours), an antibiotic for her toe and a pain killer. I have to give her a course of medication from tomorrow.
I am being ignored studiously, I am the devil incarnate and cannot be trusted or loved.
That being said, as it's a warm night I don't need to provide the snuggle safe but I will cetainly be providing some love later, whether madam likes it or not!