Difficulty and shortness of breathing.

Hello doc.... I'm LOKESH KUMAR working in police Since 2010.Im very much frustrated and lost of hope because I don't know what is my exact heath Problem and cure.. My past is not so good.. I'm Suffered From anxiety,depresssion and insomnia and take treatment from aiims hospital Delhi since 5years.. But now I left all medicine before 1 year ago and now I feel ok With my these problems.. But now I faced some other issues.. I'm Unable to breath normally.. Feels Tightness on chest and difficulty in breathing and shortness Of breathing And difficulty in walking and feels I can't walk property And fall down suddenly.. Blurred vision And not able to see clearly from eyes is also faced I'm.. What to do.. How to do.. This breathing problems I faced many problems.. I'm Going to angry Soon and not interested to do works And not able to concentrate on my works ...what I do.. How I cure myself.. Which diagnose is best for me for cure and treating.. Please help me out.. I'm Very much great full to.