Trying to fit a square peg into a round hole

All my life I've been plagued by a sudden edge to vomit after eating an egg or chicken - no matter how it was cooked. And all this time I thought that there was something wrong with me. I based all this to the fact that none of my friends or family had the same experience with chicken or eggs. It only occured recently to me that maybe you are just allergic to chicken - or call it whatever but your body is rejecting anything poultry. The tragedy of all of this is that I've been feeding my body with food that it doesn't want for whatever reason. What if by forcefeeding myself with poultry there is a side-effect to this, undetected for now. Maybe it may come after 60years of my life. The lesson here is this - listen to your body and respond accordingly, you won't go wrong with this approach. If something is not good for you, it will show you.