Whats wrong with my puppy?? Vet gave bad verdict?

Sometimes taking her to another vet for a second opinion is the best option. I took my Aussie to the vet when she was having urinary problems and the advice from that vet was to let her go through a heat and that will mature her tract enough to fix it. I did not understand his reasoning, so I took her to another vet who said go ahead and spay her (she was about 5 months old at the time and was going to be spayed anyway) so I went with that vet and the problem went away. Sometimes a fresh eye is just what you need.