Willpower

I'm a firm believer that a lot of the "ailments" we humans suffer from can be controlled through our minds (as in it's mostly psychological). But, I've never really been able to control allergies and I'm finding now that, I can control the actual act of purging, but I can't control the feeling of nausea. I wonder why that is. I assume it's so ingrained in me that I can't get past everyone asking if I've been sick. But I haven't. But my stomach just keeps flipping and flopping and it feels like it would actually be easier to "get sick" than control the feelings, you know? Anyway, so, no, I won't be getting sick. Now if only I could find the little extra bit of willpower to fight off the upset feeling with my brainwaves...