I have a hiatal hernia and you dont have to have
heartburn to have it. I do not have
heartburn at all. I had a lump in my throat after i ate
and then i had an EGD and it showed a very small one. They are harmless, so dont worry if you did have one. My whole family has them. My upper stomach hurt and my dad has one and his back hurts him. So, dont panic, its ok! :-)
Hope this helps.