Gosh, I agree with the previosu poster that so much is changing in the adolescent mind...however, i DO think these kids may have a problem. Is there a school counselor you can talk to?? I needed help as a teen and didn't get it, but that was kind of back in teh dark ages, and my parents were kind of like the first girl's mother.
IF you feel like you are going to hurt yourself, TELL SOEMONE. An adult. Maybe you ahve a sympathetic aunt or someone like that. There are also hotlines for people in distress if you absolutely can't get evaluated and get to one of those danger points. Seriously.
My feeling is that I would rather be over cautious with teens who feel their parents are nto listenign to their fears of having a serious illness--I mean on a chat board when we don't really know them.
Also, maybe you two can buddy up and keep track of one another online, make sure you each are doing ok. there are LOTS of these boards, some more sym,pathestic and knoweldgeable than others. I find this one has so many posts by family members and stuf...it's not quite the same as the ones where it's jsut FOR people with problems.
Good luck.