Chest Pain Diagnosis More Condition_symptoms My Boyfriend Is 25 And Is Having Chest And Heart Pain. Doctors Cannot Find Anything Wrong. Any Diagnosis?

My boyfriend is 25 and is having chest and heart pain. Doctors cannot find anything wrong. Any diagnosis? - chest pain diagnosis more condition_symptoms

Since the end of December I started BF, 25, with mild pain or discomfort in the chest on your mind. He went to the emergency room, where they found nothing wrong. When the pain continued, he went to see a doctor and further tests are not yet found anything wrong. Most physicians are not available because he is still young, but the constant pain frightening. The pain almost every day and lasts all day. Has anyone seen or have an idea of what might be causing this pain?