What are the symptoms of insufficient heart qi?

There are many symptoms of deficiency of heart-qi, such as general fatigue, tiredness, palpitations, shortness of breath, chest distress, pale complexion, pale tongue. There are many reasons for deficiency of heart-qi, such as chronic illness, physical weakness, serious injury of vital qi, organ weakness or congenital insufficiency, etc. Suggestions: treatment for the cause, and more exercise to enhance physical fitness.