I am sorry to hear you are having such problems. Please give me more information so that I may try to assist you. Where exactly is your pain in your left side? The burning sensation in your eshophagus, can u describe it better. Does food or acid come up your throat? Is all your pain constant, sharp, dull etc..? are you taking any medication? Do you have any pain in your arms or anywhere else? Do you have any difficultly breathing? How long has this been going on?