Terrified i might have a pulmonary embolism. help! what should i do?

See doctor: You should be examined by doctor to determine cause of chest pain which can include ge reflux, costochondritis, pneumonia, pleuritis, to name a few. Your physician then will order the appropriate tests (chest xray, VQ scan, ct of chest or treat symptoms medically according to etiology.

Go to the hospital: Symptoms: shortness of breath, chest pain, "feeling of impending doom". If you do it is potentially life -threatening . Go to the hospital.

Go to ER: You may need to get a ct scan or a blood test will help to decide if you need a ct scan.

Check with your doc: Asap. Probably normal, but make sure. Better to be safe.