Hello my name is Molly. I was diagnosed with relapsing remitting MS about six years ago, but as I'm sure you all have I experienced I had symptoms at least five years before that. I have been on Avonex, Rebif, Tried Copaxone(toture!) and now since my disease is still progressing fast. So now I am starting Tysabri. I did my first infusion on July22. I'm having some anxiety about the risk of PML and am hoping to get some comfort in the form of information and personal experience from others also on Tysabri.