I am 15 and a boy but for the last few years I've been feeling that i am actually a girl i need someone to give me advice?

Well..everyone has there own unique makeup of hormones...maybe inside you are a girl. But that is something you need to work through. Maybe try talking to someone about how you feel. Don't worry you aren't a weirdo. Some people are born as both sexes and have to decide which one to favor. You are young take your time to figure out who you are. Make peace with it.

About one person out of 20,000 is actually sexually ambiguous at birth -- possibly having both a penis and a vagina, or having female organs but a male genetic pattern. This is a recognized medical phenomenon, but there's debate about how to handle it. Increasingly, doctors are encouraging these people to pick the sex they're most comfortable with and have the necessary sexual reassignment treatment to align body and mind.

google "Transgender" for more information. You may also want to talk to a sympathetic counselor or other medical professional.

The only advice I can give is to be true to yourself! There are millions of people like you all over the world. It's not weird or unnatural.