BC pills can do that. They do treat endometriosis and they can and do mimic a pregnancy-like state, so you are probably experiencing what you might with morning sickness because of the pill. Talk to your doctor about changing pills. There are several different types and I was treated as well before my hysterectomy and only one pill worked well for me and that was Alesse. Being as young as you are there are probably several you can try, and a lot that can help with your skin because I know as a teen and even as an adult it's nice to have the pill make your skin clear. Also, if you've only been on them a short time, it can take up to 30 days for the side affects to mellow out so make sure you've given it enough time.
i dnt think so... coz i havent heard nethin like tht abt d pills previously... try to take fruits n juices (that u like) dnt force urself to eat n also dnt stave.. eat immediately wen u feel hunger!