Only pain or difficulty in swallow?any past history of similar complain? unlikely cardiac

It is likely to be due to gastritis. I would advise you to take an ECG and rule out any cardiac involvement. You will require antacids. These following steps may help: - Don't skip meals, you may not feel like eating but in such conditions you should have the reduced amount in frequent intervals(i.e. 3 square meals broken down to 5 or 6 as you can tolerate) and slowly increase as you get better. - Reduce/ Avoid spicy,fried, fatty, junk and oily food - Avoid/ Limit drinking coffee, tea and carbonated drinks to once a day - Exercise regularly - Increase daily intake of water to 3liters - Avoid/Stop smoking and drinking - Reduce stress through methods such as yoga/meditation. If the condition persists or worsens, visit the nearest ER at the earliest.