i know we all hate to call the vet for every little thing (its just so dang exspensive!) but this is one time i wouldnt hesitate. Maybe talk to lyn. She lost a beautiful filly to joint ill. I believe when it happened her vet disgarded it being joint ill because she was 3-4 weeks and didnt show all the symptoms. When she was finally diagonsed it was too late
This is vital to be treated as SOON as possible. I had one one time, the vet flushed the joint, was put on antibiotics, aspirin to help with the fever (one every 24 hours) and what all, but he healed with NO problems. Time is of the essence though. Hope it will be ok.