The Smart Living Network

I have a 16 year old Cocker Spaniel that is a real trooper. He has been blind since 2. I was told he has an impaired immune system. i have had him to specialist for ear infections and he is on a special diet. Earlier this year he suffered from the Vertigo disease and has only made a partial recovery. His head is still tilted. Now he has hip problems. . he is taking 150 mg of Tramadol. The NSID's did not agree with his GI tract. He loves to eat and walk around the back yard. I don't think the Tramadol is working well as he is hesitant to sit down alot .Any suggestions?