From last 4 yrs, my stomach feel start anxious about something and it heads towards my heart and I feel like I can die at any moment because of heart attack or loss of breath. I always suffered back ache and neck ache. When I do certain exercises of breathing, I always feel breathlessness with shivering of hands and legs. When I rolled down my head exercise, I started feeling fainting and also fainting normally. I always fear of heights, snakes etc and when I heard a sound, my mind alerted me very fast and heartbeats started rapidly. Due to this, I also feel to commit suicide as no way of getting out of this. Excitement also leads me into rapid heartbeat. All the time, I feel tired and lonely. Also I feel difficulty in removing negativity and memory loss is quite regular. Is their any medication or some test or any special concern. Kindly help me out.