I think I need help, but I'm not sure if I want it...?

You should definitely go to a psychologist. Anorexia and bulimia are often a way for a person to cope with some underlying psychological issue which is why I think you need to get help. A psychologist will absolutely take you seriously. You are participating in a self-destructive behavior that could really hurt you! You shouldn't be ashamed because you are a guy. I think there are a lot more guys that do it than most people think because they keep it hidden because they are afraid for the same reason you are. You say that you are thinking about letting it go until it gets serious but it is already to that point. If you are posting on here then it is apparent that you want some sort of heIp. Don't be scared to let someone else help you but you have to make the first move.