Hello doctor! I have had mitral regurgitation for about 12 years, first discovered mitral regurgitation 2/4. Up to now, I went to the doctor to see the results of mitral valve regurgitation 3/4. Currently I have symptoms such as chest pain (several times a week), dry cough, phlegm... and have ultrasound and electrocardiogram results. I don't know if the doctor can help me. Thank you doctor!