A. Poor guy may have knee problems or arthritic hips. I would recommend having him examined by a veterinarian for localization of what are of the legs are possibly affected. Even an x-ray of the legs can help detect and diagnose arthritis.
To help with arthritis I recommend using Dasuquin chewable tablets daily (available online through Amazon) to start, to see if any improvement with these. If no improvement then stronger meds can be used, available through your vet such as Metacam (an NSAID, non-steriodal anti-inflammatory) +/- Adequan injections.
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