Heartburn is the burning in the chest--
acid reflux is when you regurgitate some stomach acid up into esophogus
i get the burning in my chest from aspirin I have to eat first before taking them.
With the reflux I have to wait a couple hours after I eat to lie down, or I will reflux in my sleep and feel like im drowning in my stomach fluids
you can buy zantac 75 at the store and they work great, (you have to take them everyday, its not instant relief.) I could not take any form of liquid antiacids for they give me diarrhea