Is it a certain type of wine or amount?
I've read that it can be that your body isn't metabolising alcohol as well as it used to and that it's only red wine etc that does it. For me though it can happen with certain whites and reds, some i know are ok and I don't have any problems with even if I have a few glasses. It never happens with gin!
I usually stick to my safe wines but there was a mysterious bottle in the wine rack tonight, neither me nor DH knew where it had come from and now my face is bright red and hot 
