Hello,As a Person that has Heart Issues I would see your Family Doctor ASAP about this,it is posible an early sighn of a possible Heart issue,I have had many problems,with my pulse,and heart rate,jumping all over and a few flutters,in the past,I recently had a Heart Cath due to some problems that showed during a Stress Test,I go see the Heart Doctor again in Mid Aug,about the results.I believe my Brother In Law had similar things he needed a Pacemaker put in as it was a malfunction in his heart.Im not saying you positively have one too,but I would have this Looked at ASAP just in case.Jim