Hi there,
Is there anything going on with their ears? An ear infection or inflammation can definitely change the way a dog walks or runs...
Especially with long ears (it’s well worth checking).
Since it's a puppy, check their nails (how they sit on the ground), their pads (for thorns, grass seeds, etc.), and their general stance when they're standing up.
Do check carefully for a minor sprain or strain (it happens a lot with bouncy puppies) and it can be quite subtle depending on the pup.
In all seriousness, I’ve actually seen a Cocker Spaniel puppy running and take a heavy tumble because he’d stepped on one of his own ears!
Check the ears (make sure there’s no brown or black discharge).
If you could take a short video? (Maybe upload it to YouTube).
That would help, and it might even be useful for your vet to see.
The way puppies sit: they can be completely lopsided (on their hips) with one thigh on the floor, one (or both) back legs stretched out, and the other tucked in... or both stretched out.
Both thighs out like a frog, as if they’re sitting in an armchair...
My Lab sleeps on the sofa like that! Sitting up, completely folded in two, front paws on her belly between her back legs, with all four paws almost at the same level.
Puppies get into the most surprising positions.
The "frog" position (or splooting) usually disappears as they get older.
Also, the microchip... it can sometimes be a bit uncomfortable just after it’s been done.
