I'm in my twenties, too. I think people our age are more open to the idea of food causing illness, compared to my grandparents' generation. I think it's because there's more awareness now that not everything can be solved with a "suck it up, get over it, and move on" --type attitude. You know, the mentality that says, "if I don't see gushing blood, you're just fine." Has anyone else noticed this? In my experience, when I tell someone 30 years older than me what celiac disease is, I'm much more likely to get a skeptical reaction than if I tell someone my own age.
Yes, I've had a similar reaction even though I had most of the same health issues (and more) as the middle aged people I'd encounter. I was also told, "You're young; you'll bounce back from anything" repeatedly pre-diagnosis. I still haven't bounced back.