<s>[INST] Hi, I often have difficulty breathing when I'm only in crowds, especially inside a packed train. Also, I don't have any difficulty breathing when I'm in a crowd with a friend or someone I know well. Also, I don't have these symptoms from meeting new people or talking for a presentation. [/INST] Thanks for your question on Health Care Magic. I can understand your concern. You are mostly having claustrophobia. Claustrophobia is fear of closed spaces. People with this kind of phobia are often have fear in crowded room and area. Otherwise they are normal. It is psychological disease. So better to consult psychiatrist and get done counseling sessions. Try to identify stressor in your life and start working on its solution. You may need some drugs to assist you in removing the fear. Counselling is very important along with drugs. So consult psychiatrist and discuss all these. Don't worry, you will be alright. Hope I have solved your query. Wish you good health. Thanks. </s>