If it was your first ever taste of alcohol, your system probably interpreted the drink as poisonous substance and caused you to vomit. Tolerance to alcohol builds up slowly if you choose to go that way.
Have you ever drank alcohol before? I'm assuming at 31 that you have so maybe it was just something in that particular wine. I used to be able to drink bourbon & when I turned 29 I couldn't anymore because it gave me "the runs". I'm 31 & still can't drink it so maybe our bodies change somewhere along the way :)