Hello supportive,
Welcome to the forums and I'm sorry about the trouble you are having at the moment.
I don't have a daughter, but I can certainly understand the concern you have as I do have a younger sister and I fret a bit about things she does.
I think it is fine to voice your concerns, but I think this would need to be done pretty tactfully. E.g. have you noticed her behaviour change, or is it precautionary? Her health is, except in extreme cases, going to be managed between herself and her doctor and her friends and family are there to support her as you have done.
As you mentioned, I think the key thing here is to also seek help for yourself as it can be really really hard supporting someone with any kind of mental illness. The sense of powerlessness is tough to deal with and I've had to listen to my sister tell me, while she was overseas on her own, that she just decided to walk home at night with no battery on her phone, in a city she didn't know, through deserted underground tunnels in an area that I know is unsafe, without any local language skills.
But, I reminded myself that she did in fact get back to her room safe and while I told her that was pretty dangerous, I left it at that.
Like you say, the thing we dread is having to pick up the pieces, but more likely than not, it won't happen.
James
