At your age its unlikely to have heart attack. But I have seen some cases of massive heart attack in young age, as young as a 4 year old and many in 19 years of age as well. because in India people with undiagnosed high
LDL, Lipoprotein A and homocysteine levels are increasing. so better get yourself evaluated.
try antacids for immediate relief
Next Steps
feel free to consult me on practo if you still have further queries