Hi Lin, Welcome. I have rsd in my leg as well. Swelling is part of the rsd package. My left leg from my thigh down is a half inch larger than my right. It has been that way since the beginning. It is part of the rsd package for me. Like you I am very tiny so it is easily noticed. But, compared to the pain and the disability that rsd causes I don't pay much attention to the swelling. It's just a way of life now. Hope you enjoy being on board. Best wishes to you. Jeannie