Not so much a sensitive issue anymore, since I've been dealing with it for 25 years. We've never been able to determine what's wrong - all the doctors in the state when I was a kid couldn't find anything wrong, and since I was a pre-teen female, they defaulted to declarations that I was lying about feeling nauseated all the time, to cover up an eating disorder.

And I haven't had it investigated since, because the whole thing set off what I now recognize as PTSD, more or less. One major side effect of the crap they did to me during the hospitalizations was that I started having panic attacks, and those started getting worse about the same time as I had another flare of whatever-it-is earlier this year. Anxiety + chronic nausea = not exactly eating much. But at least I can get away with living off of mostly Nutella and chocolate soy milk - I need the calories and protein.