Originally Posted by Jan in CA
Aspirin? That's okay for a puppy? Be very careful about body weight an dosage if it is.
I'd contact a vet as soon as you can. Only a vet can diagnose whether it's serious or not.
I'd second and third that. Please get your puppy to the vet asap. He/she may need to take an x-ray before they can start treatment.
Please let us know how your puppy is.