I know, I know. Bad evening....
Scurra - Tell her. This is one of those annoying "voice of experience" posts. If the feelings you have for her are eating you up, stopping you from sleeping, if she's on your mind all the time and stopping you from concentrating, tell her. Tell her that you love her. Don't hold it in because it does you no good. You'll change around everyone else and especially her. It'll eat at you and no matter how hard you try you'll explode one day. Tell her when you are able to control yourself. Things are a lot easier that way.
She may feel the same way about you, she may not. Either way things will be slightly better after you build up the courage and say something. If she says she likes you, Wooooooo. :cheer: If she doesn't she'll at least know she's special to you and if she is a good person won't run away from you. She may only like you as a friend, but what's wrong with that? She'll know she has someone who cares about her a great deal.
I'm not saying things will be perfect if you say anything to her. But it will change things, it will help you move to a place where you're not killing yourself slowly. If you don't say anything, you're ****ed. You can't put yourself through speaking to her one minute then the moment she's gone feeling like you're falling and will never stop until the time you next see her.