A 38 year old women presents with a chief complaint of chest…

A 38 year old women presents with a chief complaint of chest pain. She states the pain “woke me up” at about 2am and describes it as a squeezing pressure in the middle of her chest and into jaw. She felt a little nauseated and short of breath with the pain, but it all gradually went away and she felt fine. The episode lasted about 5 minutes. She says it was really scary and that it was the second time it happened in the last three weeks. She has a BMI of 23, works out 3 days a week, and no history of HTN, DM, or CAD. She smokes less than a half pack of cigarettes a day. What is the most likely diagnosis?