Answer by
kacey912 (34)
Temporary causes can be Intake of stimulating substances such as tea, coffee, tobacco etc, Heavy Meal, Emotional stress, fear, anxiety, nervousness, Certain medications, Fever, anemia, Vitamin Deficiency, Physical exertion. Other causes are Heart Diseases such as coronary heart diseases, high blood pressure, pericarditis, Thyroid Malfunction, Faulty Upper Heart Chamber, or Emphysema.