I’m 36, fit and healthy, but have noticed recently I’m having episodes of rapid heartbeats when I’m not doing anything. I’m sitting here now and can feel my heart thudding away - have counted beats and it’s about 104 per minute. No physical cause I can think of (don’t smoke, do exercise, healthy weight). I am generally an anxious person so I’m sure it could be linked to that, but I’m not feeling particularly worried today and it’s banging away. I’m noticing it quite frequently. I did have an echocardiogram two years ago due to chest pains (I’m sure they were probably anxiety related) and everything was normal. Should I see the GP? Any idea of possible treatment?