For over four weeks now, I have been having almost constant nausea. It's an odd feeling because it's in my stomach, but I can also feel it in my chest and throat. If I cough, my gag reflex goes crazy. I've only thrown up twice, and both times it was from coughing. When I first eat, I feel good for a while, but then the feeling comes again. About 3 1/2 years ago, I was having problems with anemia (from heavy menstrual flow due to fibroids) and acid reflux.