Yes you really need to spell it all out to the Doc.

Sadly your mom is like many people who think this is a mind over matter. Share with her some of our posts on other threads that described our illness. Show her that others much older than you suffer from this. It is not an over dramatic kid thing!

Show her my post called This is my life for example. Not because it's mine but you know what I'm saying.

http://forums.psychcentral.com/showthread.php?t=163771