Hi and welcome to HCM. Thank you for your query. Shorthness of breath is common sign of any kind of gastritis, GERD and especailly in hiatus hernia. These disorders can cause such difficulties and you should do gastroscopy to evaluate this. Symptoms that are experienced in such conditions are pain and tightness in upper stomach, bloating, breathing difficulties, heartburn, feeling of lump and sore in throat, gurgling sound in throat, fatigue and loss of appetite. Symptoms are aggravated after meal, long sitting, leaning forward, stress and anxiety. In the beginning this is treated by changing dietary habits. You should avoid alcohol, coffee, smoking, fats and fast food, carbonated drinks and eat more milk and milk products, fruit and vegetables, boiled food and natural beverages and teas. 1 hour after meal you should not sit or lay. Also lay with elevated upper body. If you are overweight you should do often exercise. Secondly, there are antiacid medicines which are usually helpful,you should consult your GP about this. If symptoms persist,you should do gastroscopy and stomach biopsy to verify is there helicobacter pylori infection which can be treated then. Hope I have answered your query. If you have any further questions I will be happy to help