Help, I don’t know what my body is telling me. (TW: throwing up mention)

So, the deal is that last night I drank, not much more than I use to, but I didn’t really intend to drink that much. And yet, this morning I’ve been throwing up nonstop, but the thing that really annoys me is that there’s nothing left in my stomach to throw up. But my body keeps insisting that I need to throw up so it just end up hurting to throw up my stomach acid. I don’t really have a headache or my other usual hangover symptoms. Whats my body telling me? Should I eat something, but I’m afraid that’ll get thrown up and I don’t have the biggest appetite rn.

Why do I keep throwing nothing up?