Welcome to Pet Talk.
Keep us update on Pepsi please.
A vet visit and a blood work up would not hurt.

We had a senior lab/GSD that had one leg atropy, but
she still had a great quality of life even though
she had slowed down and arthritis had kicked in.
(we think the atropy on her leg was caused by a tick
bite, but we are not sure)

Welcome again and sending hugs to Pepsi and and Luke.