I am a bisexual guy and I have a major crush on my best friend who I suspect is also bisexual to the point that I think I am in love with him. I want to say something but I am afraid if I tell him and it doesn't turn out like I hope then our friendship will never be the same. I think about him all day and night and I don't like going more than an hour without talking to him some kind of way. It so bad that I believe the pain of not knowing how he feels is actually affecting my health. Please can someone give me some advice? And if you aren't going to say anything nice please don't say anything at all because I already go through enough because of my sexuality.

No-one is here to judge rocklee :)

Have you tried throwing some subtle hints out there that you like him?
One way is just to get into his personal space and see how he reacts. When you are chatting to him one day, just stand very close to him and see if he looks comfortable or if he takes a step back.