I'm no psychologist, but when someone's behaviour appears out of character to those who know them, probably best to err on the side of barging on in to see what's up.
yeah because you know her personally in real life and you know her so well that this behavior is considered 'out of character'?
You can think you know her all you want but unless youve spent actual time with her in person to know her personality and habits, you don't really know her at all.
I agree with Bodie let her family handle it and leave her alone. Asking about her on the forum is fine, but sending people to her house and "barging in" is crossing the line.
If she really wanted you people to know where she was, she would have told Dave or the other mods in an email or message. it would have taken 1 minute of her time. she obviously didnt.