Was standing and suddenly had tightness in chest, heart felt like it was pounding and nausea, with sweaty palms and hands and a cough and gagging ?

More information: More info is required in order to advise appropriately. Symptoms like this in female in 30s could be related to anxiety, asthma, infection, etc. however with recent onset of chest pain in people that are potentially unstable based on history, family history, appearance, or vital signs, should be immediately evaluated in an emergency dept. In stable pt a consult would help to determine next steps.