Im 28 yrs old... had a chest pain and palpitation all of a sudden. it lasted for more than 30 min. at first it was a chest pain associated with palpitation, bp was high. i went to hospital they conducted an ecg 2 times, blood test for thyroid and xray, everything was ok. i never drink nor smoke in my entire life, thats why im wondering how i suffer from all these. anyone can help me.