There is a facebook forum for people on Gilenya or those considering it. It's open to the public. Just type in "gilenya support group" on facebook. There are lots of people talking about side effects.
Oh wait, I suppose I can just paste it for you!
http://www.facebook.com/group.php?gi...6888138&v=wall
Read comments on this wall and also make sure you click on the "discussions" tab at the top.
Anyhow, I found it very informative.