Take a deep breath and look at this link: Orthopedic Foundation for Animals
The first breed listed is the bulldog. As you can see, out of the 564 evaluations done 71.6% have hip dysplasia. So you're far from alone.
Blue was diagnosed with it at 9 months. His is very mild. So mild that the regular vet missed it altogether and thought he had normal hips. But the radiologist caught it. We're going to deal with it when, or if, we see symptoms. He's going to be 2 years old on December 5th and so far, so good. He's not showing any signs of pain or symptoms.
Wellie also has it and it's the same deal for him. If he starts showing pain, we'll handle it as it comes. Wellie's is more severe though so I have no doubt he'll need meds. eventually.
Depending on the severity, they may or may never show symptoms, or they can be mild to severe. It's a condition that varies from dog to dog.
How was it diagnosed in your pup? X-ray? And what grade is it?