hey... i m 17 yrs old ...turning 18 this july.. and i m.facing this prob from last 4 months... it started in the month of october when i had participated in race of 800m nd from the next day started getting sharp pains when walking but dissapeaes on relaxin nd sitting... that prob went off after i few days ...but chest pain comes on nd off ocassionally... i had murmers in my chest region too when lying down...no probs while walkn... i am getting treated with anxiety thats wat my doc says. he said its nothing related to the heart ur too young nd as my lipid tests nd cholestrol was all good... i m really scared nd worried ... is it heart prob... Sigh...worried... thanks.help me out...