Hello i have noted your concern,
Normal heart rate ranges between 60-100/min
Heart rate less than 60 or more than 100 can be due to underlying medical condition or it could be not related to any medical condition at all.
Next Steps
Kindly immediately consult doctor if you are experiencing feeling like their heart is racing. Because the heart is not operating efficiently and depriving the body of oxygen, the condition also can cause lightheadedness, weakness, dizziness, chest pain, confusion, and even fainting.
Health Tips
The common causes of tachycardia which can be managed and some factor which cannot be managed are listed below, example Older age, Excessive use of caffeine or alcohol, Family history, Excessive use of caffeine, High blood pressure, Overstraining the heart during exercise or fever, Smoking, drug, or alcohol use
Stress or anxiety!