If you stick to wine that’s about 700 baht a bottle up, it never gives me a hangover. I buy most of my wine from Ray at VinesToVino, I’ve never been there but he’s on Thepprasit Road in Pattaya. He has excellent knowledge. None of his wines have ever given me a hangover. I recommend using the Vivino app on your phone, scan the wine label in any shop, score 3.9 and above is usually pretty good. The bargain in that shop is Carant an Italian wine which scores 4.4. I have a dedicated room air conditioned 24/7 for my wine, it’s a serious obsession with me.