@izzadora - welcome to Connect! We are happy you found us too!
Chest pain can be anxiety provoking- there are quite a few reasons.
Is the chest wall tender when you rub it over the bony parts? There is one type that is caused by inflammation of the cartilage between the ribs and sternum- costochondritis. Applying heat usually helps, as well as taking an anti- inflammatory medication- such as ibuprofen.
Reflux into esophagus is also a fairly common cause - you are taking Nexium for that.
Let’s hope the stress test is normal.
The most common cause for chest pain like yours is musculoskeletal.
Can you please get back to us after stress test?