HI . It could be a flare, but if your symptoms are worsening only in that one hand, it is more likely related to your fall. Did you have x-rays taken after your fall? It's possible that you broke a bone or tore a ligament or tendon, but that constant use has made the injury worse. I would strongly suggest that you have that hand checked out. Please keep us posted if you are comfortable doing so. I will be thinking of you. - Lori (Team Member)