Cardiovascular  Chest pain  Palpitations Cerebral  Cognitive slowing  Lightheadedness  Syncope and presyncope  Vertigo Gastrointestinal  Nausea Hematologic  Pallor  Weakness

Pulmonary  Dyspnea (hypoperfusion of apices)  Fatigue  Platypnea (ventilation perfusion mismatch with upright positioning) Retina  Blurry vision  Dimmed vision Upper body muscles  Neck and shoulder pain (coat hanger syndrome)