There is a left pain in my left hand which comes and goes. Also, ECG is done which is absolutely normal. Full body check up is also done in the last week of September which was also normal except vitamin D and b12 deficiency and low haemoglobin. Also, there is a tightness on the left side of chest near shoulder as well and burning sensation in ribs near stomach lining. Please help. As I was suffering from acidity as well from May to August. Is this acidity or heart problem. I am very very tensed I am taking Ambulax and serlift medicine half a day as well.