Thank you for your responses. Sorry I've been away from the board for a while so just seeing it now! I've thought about accupuncture and ultrasound, but as was was mentioned I think the handling would be too stressful for him. He is also heartworm positive with an enlarged heart and when he's stressed he starts panting really bad and coughing and I get nervous. We go Thursday for a second opinion- arthritis vs. neurological. Thanks for the good thoughts.