Please answer me please,am restless, when I was 13years old I was having shortness of breath,went to the hospital then the said nothing was wrong with me,that my heart is okay,then as time goes on it comes and go,then as I grew to now am 22 little things scares me,my heart alwys beating fast,alwys skipping,I get scared of a lot of things.went to the hospital.did xray they said my heart is perfect,but since last week I have being having back pain,shaking of body.am scared.hospital keep telling me is psychological,but I don t think of anything.please answer me I need help