In article ,
"RST Engineering" wrote:

Gorgeous animal...have him tested for thyroid. I've seen more dogs perk up
when they get the thyroid working correctly than anything else.

His problem is arthritis, plus a congenital defect (he's missing one of
his hip joints, though that actually doesn't slow him down much). He's
on meds and they do help. But he's ten years old now, so he's not a
puppy any more. The days of ten mile hikes are over. But he still
bounces (literally!) when he knows it's time for dinner.

rg