TTC alcohol intolerance...

F

I’m TTC #1 (first month)...and I’m currently 4dpo and suffering from alcohol intolerance. I was a frequent (and sometime too heavy) drinker which. Have now cut back. However, we went to friends today and we have decided not to tell people we are TTC to minimise pressure. I’ve had probably half a bottle of wine and if normally be fine. However I feel really queasy and I’ve struggled to drink it. Why?!