I have no bad habits like smoke drink,,Since I have *one year*  Im having pain in  left chest , left back and left hand pain  to  sometimes its a dull pain sometimes its worse .. I consultantd cardiologist 5 times in one year .. Note : 6 months before im done ECG , ECHO ,TMT - report is normal and lipid profile is normal in six months back... Can i repeat the heart related tests or what is next step sir / madam *chest x ray normal * ecg normal (I done 39 ecg in one year)  *yesterday i done ecg i attached pic* *blood pressure 160/90 *rbs normal(recently Done) *lipid Prof( six months back) normal *renal function test normal(recently done) * abdominal ultra sound normal(recently Done) * thyroid test normal(recently Done) *urine test normal (recently done) *liver function test normal (recently Done) *high sensitive trop test (six months back normal) Why come pain in left side chest pain sir.. I'm worry fear of heart attack comes and in papers tvs shows bad news I feel worry fear..