dietary supplementation
"It was suggested that I supplement my diet with fish oil, don't remember if it was for my high blood pressure or arthritis, but she was a nurse and I said yes. 
Three weeks later, my stomach will not settle, everything I eat makes me feel "too full", gassy, and nauseous, and there is nothing but (please pardon me) liquid for stools. As of today I am discontinuing use to see if that is my problem. I hope this helps someone suffering in the same manner I am."