Some 'fluttering' is benign (or not dangerous) and other 'flutterings) could be serious. The only way to get it diagnosed is to go to the doctor. If it continues for more than it takes you to get to an ER-go. Depending on what's going on, they can hook you up to a monitor and try to catch the rythm. Sometimes, it's so fleeting (or quick) you'll need a halter monitor that you wear for 24 hrs and it'll catch the beats. (most of the time) The most important thing, is how do you feel when you have them? If you have any problems breathing, chest pain
, feeling faint-you should go to an ER right away. And don't drive yourself! Most irregular heart beats I've seen in the ER are benign- or don't need any intervention. Age really isn't a factor-some of the fastest heart beats I've seen in young adults! Either way, it's causing concern to you-so check it out.