Have noticed tonight that my jack Russell's back leg has been sort of giving way when she's been walking, & she's found it hard to get up on the sofa using that leg. She's 11, so although old, not massively old for her size of dog, she's not particularly active she has 2 walks a day but definitely likes her home comforts & is very nervous being out & about.
Obviously will call vets in the morning but just worrying what it might be if anyone had any experience?