I'm new to this, but here goes. I am an 18 year old female. Last year I was diagnosed with Wolff-Parkinson-White(WPW) Syndrome. September 2002 I went and had ablation. But it failed, so now I am on medication for the WPW. I am currently taking Toprol and Flecainide. December 2002, I started getting these hard knots in my lower legs. They swell up really big sometimes and the swelling usually goes down after a couple of weeks, but the knots never completely go away. Where the knots were I can still feel them under the skin. The skin turns red when they are swollen up real big. I went to the ER in March 2003 because of WPW complications. I told the doctor there about the knots, but she refused to even look at them and said they were shin splints. I didn't argue, because she's a doctor and I figured she knew what she was talking about. But, I have always heard that shin splints were painful when you walk. These are not painful when I walk, but they are very tender and hurt when I bump them on something or touch them. When I went to the cardiologist in April, I asked him about the knots and he said just to keep an eye on them. Any ideas anyone??? Could this be related to the medication that I am taking? A physicians assistant suggested phlebitis. Anybody?