Well if your heart beats faster then you are in love dude, but if that would be the case then you won't end up on this website right now. Before speaking about the topic let's discuss when it is not a problem if your heart beats faster: When you are in a state of happiness(even you know this!!) It is definitely not a problem unless it causes other symptoms such as dizziness, lightheadedness, or shortness of breath. If there is no history of heart disease and if you do not have symptoms mentioned above then it is not a problem, it is just a minor change in heart rate. When you have an illness (take an example of fever) then also it may beat faster. Physical exercise for a long time can cause rhythm changes of heart. In case of pregnancy minor changes in heart rate is most common, but in case of a history of heart disease, it could be a concern. Well if you have an irregul...