ive been experiencing random chest pains (feels like a needle prick and lasts for a few sec), racing heart & sometimes i feel like there isnt enough oxygen for me to breathe. im experiencing this symptoms day after i witness my grandma fall from a high chair while cleaning. ive been to my family doc but he said that its just the after effect bc i was too shocked by the incident. ive been to a chinese physician and he said the same thing he gave me some medication and the symptoms improved (at the start i was having a racing heart all the time but now its only occasionally). please advice, is it just my mental health palying tricks on me or is there a problem w my heart?