[Miss_Sara]

bad teeth, hair falling out, and missing periods are not really the first signs, except maybe missing periods. the rest can take a while. and you wouldn't really notice anyways if she was having a little thinner hair and such. Even if you really tried to remember.
I don't want to jump to conclusions but to be honest it sounds like she might be anorexic, especially since she never eats dinner with you and always leaves. If her friends say she eats, that might mean that they might be anorexic and support her, or that she is lying to them and complaining about how people say she doesn't eat (to throw them off, and complaining about how you bug her of course, normal),or she got pissed off when they said something to her and told them that she'll eat if they don't tell you.
the salads and exercising if you're already thin is pretty much obvious. This is what I would do when I stayed at my friends house for a summer, my friends would be like "you never eat!" (and this would sometimes cause my blood sugar to get so low that I'd be shaking and near fainting) and when they got really annoying I'd eat something that is a CATABOLIC food. These are foods where you burn more calories then you eat, and some of them aren't very obvious. like tuna. I'd eat some tuna and then I'd go swimming for an hour to make sure I burned every single calorie. After a while I got used to having to eat in front of them so I was on this serious catabolic food diet and lost a LOT of weight that way, so anyone who actually wants to lose weight, research that, it's great, and has some yummy foods.
OF COURSE she gets mad if you ask if she ate, idk if your daughter still is now, but I think she definitly was in highschool. Also not eating tends to make you angry, idk, I guess because you are already stressed, and not eating makes you EXHAUSTED, but then you keep exercising so you don' talways look as tired as you are. Imagine how angry you'd be if you were trying to keep a secret and your mom kept butting in? Even if it IS for her own good!

I hope that your daughter isn't anorexic, I really do. But when obesity growing, so is anorexia, definitly. Girls are TERRIFIED of being fat, I mean scared to tears. I've seen girls cry, not because they've gained weight, but because they were afraid of looking like their mothers, or aunts, or whomever.

does your daughter have a myspace? if so I can just randomly contact her and chat her up, and of course I wont say anything about you. I would never do that, but I can just ask her if she's anorexic, and she'll probablly tell the truth to an online stranger that she thinks she can confide in. This is "an invasion of privacy" or whatever, but idk, I think it's different when it comes to health.

love you and support to you, there's definitly a possiblity your daughter isn't anorexic at all!!! Don't read TOO into things.

(and because she's 19 she can choose not to get help)