Hi I am 26 years old for the past week I have been experiencing constant heartburn nausea and tight chest with shortness of breath .. I have been treating the heartburn with antacids but it does not work. I can feel the burn inside my tummy ... But just after it began ... My period has been acting up ... I had my pms for 5 days a week went by with nothing and then I had my pms again. And when it was over the heartburn and everything else started ... I dont know if it is related or not or if I should see a doctor or not