I can't eat ANYTHING without pain in my chest area

I can't eat ANYTHING without pain in my chest area.  My doctor believes I have gallstones or pancreaitis.  I'm nauseaous every day some times all day long.  I'm still waiting to go in for an ultrasound.  Does anyone know how to relieve the pain after I eat something?  It doesn't matter what I eat.  A little piece of bread, a green bean, nothing with fat in it, even a cup of tea has me in pain.  Any help would be appreciated.