Thanks for your question on Healthcare Magic. I can understand your concern. Yes, valvular heart diseases are seen in younger individuals (less than 40 years) with symptoms of palpitations, chest tightness, chest pain,night sweating etc. So better to get done 2d echo to rule out valvular heart disease. If 2d echo is normal then possibility of stress and anxiety is more likely. So take him to psychiatrist and get done counselling sessions. Try to identify stressor in his life and start working on its solution. He may need anxiolytic drugs too. Don t worry, he will be alright. Hope I have solved your query. I will be happy to help you further. Wishing good health to your son. Thanks.