Hi guys. I am new to this group. We have 2 doxies in our home. Rollie has been with us for a year and he is almost 7. He is the cuddliest, goofiest little guy. Lately when we come home he happily greets us but growls when we pick him up. He has gone so far as to snarl and snap. This is very unusual for him. Does anyone have any thoughts on this?