I say if you are upset and concerned enough to write this post, you are in bad enough shape to get to an ER NOW. They may tell you it's the RSV aftereffects but you sound like you think it's not. Listen to your body, you know it better than anyone else. You don't want sepsis getting you because then it's almost too late. Take care of you now and at least you will at least have peace of mind. Stay till you are satisfied with their diagnosis and prognosis. Go again in two days if not better. Good luck, update us.