Drank a whole bottle of vodka. How bad is it?

Yesterday, I drank an entire bottle of grey goose 750ml. It was spaced out from 4pm to 11:30pm. I woke up this morning and just realized that it wasn’t my intention to do the entire bottle. I am 6’1” and 195lb. My questions that keep running through my head are:

How dangerous was this?

Should I be concerned?

Did I have alcohol poisoning and didn’t know?

I did not black out, but when I got home my head was spinning so I brushed my teeth and went to bed.