Male 18, Hello Doctor i seem this problems often that Doctor when i am in College or when i study or when i going down or up from stairs i feel soo much panic and my breath is going very fast this time and i concentrate on my heart beat when heart running fast i stop my breath to feel the heart beat and Doctor at this time i feel like my heart rate is soo slow and i feel lost of breath and Doctor i feel that my heart beat sounds loud and i feel in my mind that, if my heart beat stop i will die, Doctor when i going down or up from stairs or when i m in college i am thinking that the heart is only live us if it stop pumping i will die and suddelny i feel toooo much panic, Doctor what should i do i m facing this problems after i concentrate on it, I m a Medical Student and when i study about hearts i feeling this problems again and when i listen the sound of heart beat i feel that this is my heart beat and i realize my heart beat is this sound, Doctor my activities is, i m not playing any sports, i m not doing any physical activites, i am also suffer from DNS and when i feel pain in sinuses i feel soo much panic and i feel my heart will stop and my heart sounds very loud this time what should i do doctor plzzz help me , Thankx in advance