Hello, Increased heart rate more than normal would be matter of concern if this is being confirmed by EKG and pulse taken by physician this is the criteria the confirmed the heart disease, but most of the time the EKG is suggestive of sinus rhythm means the increased rate are not due to any cardiac pathologies but it is physiological, if you have taken the pulse rate with your own with no clinical symptom then it may not be granted for any clinical evidence because over consciousness can increases the heart rate, it is better to confirmed the heart rate clinically it may be normal or have some disease but without clinical examination and EKG it can not be differentiated. Hope I have answered your query. Let me know if I can assist you further.