Thanks for your question on Healthcare Magic. I can understand your concern. In my opinion, we should get done chest x ray and ultrasound examination of axilla to rule out lung infection and axillary lymphnodes. If both these reports are normal then no need to worry for major illness. At young age, panic disorder and anxiety are very common. So consult psychiatrist and get done counselling sessions. Try to identify stressor in your life and start working on its solution. You may need anxiolytic drugs too. 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.