Hi Cat. It's interesting how many patients on the realself site do not go back to their injectors immediately with issues like this. We definitely recommend that you follow up with your injector and compare your before pictures to get a better gauge of what's happening.
Switching to Restylane is certainly an option, but we would not want to recommend that until you know more about the results. In some cases, when not enough product has been used and the swelling subsides, patients are disappointed with the volume. It's a delicate balancing act for injectors especially because too much swelling (using more product) can also make patients uncomfortable with their results (at least in the short term).