You can't have period symptoms if you are biologically male. You need a uterus in order to have period symptoms so I think you're just freaking yourself out with that one.
On the other hand, there are plenty of people who feel that they were born in the wrong body. You could be gay or you could be transgender in the future. There's a facebook page called Have A Gay Day and it's a super supportive community. You can message the admins and they usually reply or even post it anonymously on their wall so other members can give you advice.
Boys do have period symptoms. Its when the male organs are preducing sperm. Its normal for a guy to have symptoms like a girl eg mood swings and pain. By what you describe you may be transgender. How long have felt like this?? X
just know that you aren't the only one who has ever felt this way.