Can it be a heart attack if i have symptoms of cheat pain back pain arm tingling etc. enzymes and ekg were normal 2 days ago?

Heart attack: Very unlikely in27y/o with those results.

Not likely: Myocardial infarction from blockage of a coronary artery is very rare in 27 yr old women. Other heart conditions or other medical causes are possible, but a detailed evaluation is needed to identify if any might be present. Though rare, one serious and sometimes overlooked cause of chest pain/arm tingling is pulmonary embolism - blood clot in the lung. See your doctor if symptoms recur.