Tabitha, I'm so sorry to hear your pup is in pain. However, the only person that can help you is your vet. He/she will want to take X rays to find out what the problem is. He can also give you some medication for arthritis, there are many now that work very well.
Unfortunately , it's true that hip dysplasia is common in Labs and Golden Retrievers. Please get some help as soon as possible, so she does not have to suffer.