Do you have this pain soon after consuming meals? If yes, then it could be gas which causes a bloating sensation and pain in the chest. Avoid eating too much at a time. Have small meals with controlled portions of food and eat light. Avoid heavy meals with rich gravies, fried and oily foods. If the chest pain occurs alongwith breathlessness, then you must consult a doctor. You must try to manage your diabetes effectively by controlling your diet and increasing physical activity. If you can afford then, using a glucometer to monitor blood glucose levels will be of great help. Recording blood glucose levels before and after meals helps you to make changes in your diet with the help of a qualified dietitian. Cut down on your salt intake to not more than 5 gm/day (one levelled tsp). Sprinkle some salt only after cooking foods without salt. It will give more flavour. High salt intake increases blood pressure which can harm your body especially eyes, heart and kidneys. Hope this answers your query satisfactorily.