Thanks for your question on Healthcare Magic. I can understand your concern. No need to worry for major heart or lung related diseases for your symptoms as your extensive reports are normal. Sometimes, undiagnosed, uncontrolled stress and anxiety can also cause similar symptoms. So consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on it s solution. You may need anxiolytic drugs too. Counselling plays very important role along with anxiolytic drugs in control of symptoms. Don t worry, you will be alright. Avoid stress and tension, be relax and calm. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.