i'm up a little too late but...

Here is my problem. I am currently on Tysabri, my next infusion is scheduled for Thursday morning and it will be 5th. Ever since I started Tysabri, about the week before and a few days after I get it I notice that my hair decides it doesn't like being on my head anymore and well more than a normal amount seems to fall out...any one else notice this...maybe its all in my mind...but I can see the shedding on my floor...