maybe it just doesnt sit well with your stomache?

I used to just about gag every time I tried to eat butterbeans or collard greens. Simple solution was to stop trying.

Don't eat oatmeal if it makes you nauseous.

I remember that I once got sick off of oatmeal because I was grossed-out. Are you eating it because you want to? Or because you HAVE to? lol
Eat what agrees with you, that's the best you can do for yourself!!

I know this post is over a year old but this info might help someone else who landed here after a search.

Many times people get nausea after eating oatmeal because they have celiac disease. This is an autoimmune response to the gluten. Other things that will trigger it are wheat, barley, and rye.

check out:
http://www.csaceliacs.org/celiac_symptoms. php

and:
http://www.aafp.org/afp/980301ap/pruessn.h tml

I had this problem for about 15 years and recently developed numerous symptoms. I finally found out I have celiac.

Hope this helps someone.