I think that you are getting anxiety attacks
; perhaps you have been neglecting yourself with regard to stress
and as well as physical fitness. You should attend some stress management classes, do a personality development course, and get into some exercise regimen, regularly. Your mind is also becoming very negative and the defeatist attitude is getting a strong grip on you. Meet with a counselor and discuss all your problems and work out a solution with some of the suggestions mentioned above. Learn some new skills to handle emotions, especially the problem of fear
. You could get back to full confidence, if you followed the instructions properly.