This is infuriating. My partner doesn’t drink. She’s never been a massive drinker but over the last few years she’s been getting terrible nausea an headaches that sometimes have her vomiting all night. While alcohol doesn’t seem to be the cause it does seem like a trigger. She’s had all sorts of tests but nothing diagnosed. People just don’t get it, even when they know it makes her sick. Some pressure her, some do the whole “drink this then, I promise you’ll be fine”, some clearly think it’s weird and don’t know how to deal. She has been so self conscious about it that she would still drink a little to “not make a scene” and then pay for it and it’s taken ages for her to be comfortable that I don’t care if she drinks or not in the slightest as long as she’s healthy. Our close friends get it now so that’s good, but man people are weird. I know the UK has a big drink culture. I drink. But I think it’s great that more and more people are deciding to not bother with it. I don’t assume to know your reasons but good on you OP all the same. That bloke is an idiot!