Is this typical or should I worry?

[funforsome]

Asking as I can find it difficult to not jump to worst case.
DD (17) - I found half bottle of vodka and wine in her room (bottom of wardrobe as I was picking up clothes). I didn’t say anything, ignored it and just thought this was something she had for a party.

However, I am now worrying that she is drinking more often than parties and perhaps in her room? Her boyfriend was round earlier and I am now sure she’s “tipsy”. I’ve grown up with alcoholics so could be overreacting…
what do I do? AIBU to worry?

I think I’d just ask her tonight and see what she says

I’d be concerned.

Would you say you’d found it? Or just ask if she’s been drinking?