Pain in the middle and left of chest.

Hi doctor. I dont know why i am soo worried abt my health.When ever I get some pain in chest I am going to hospital.Every time the common symptoms that are noticed are pain in chest for 2-3 seconds ..it occurs randomly 3-4 times a day..numbness in legs and hands...getting sleep only for 4 hours...numb pain in left hand shoulder sometimes which comes and go away..and i also have cold sweat sometimes for total body...it is happening from many months..Everytime this happens..i rush to hospital and get ECG,2D ECHO and TMT done..I dont know if it is related to heart or else something..all the reports are saying okay...but yy i am having these pains doctor... please do help me out doctor.. i have been to many hospitals and they say everything is fine.. when everything is fine..why am i getting this pains again and again ...I attached my ECG and 2D ECHO reports doctor..please say what to doo..and help me to overcome this doctor