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I'm a 26 year old female and have suffered with panic attacks and anxiety for about 7 years. I have had many tests over the years because of frequent PVCs, countless ECGs, echo, blood tests, 48hr monitors, all ok.
On about 4 or 5 occasions in the last couple of years I have had episodes of heart racing really fast (180-200bpm) for no apparent reason. It's always been in the morning, and mostly with slight exertion like walking upstairs, hoovering etc. I know it isn't SVT because it's more of a gradual increase and decrease, and I don't think it can be atrial fibrillation as it's not irregular. I don't get any symptoms when it happens like chest pain or shortness of breath. It has lasted anything from 15 mins to 45 mins. I just don't know if it's a panic attack or something serious. Last time it happened I didnt feel overly panicky, just very aware of this fast heart rate. It also seems to fluctuate a bit, like it's coming in waves.
I have done a lot of googling and can't find any particular heart problem that fits this symptom. I'm really hoping its panic attacks but there's this doubt in my mind that it could be something else and it's stopping me from living my life, I feel like I'm just waiting for it to happen again any time.
Are there any heart problems that could cause this? I am fairly healthy, don't smoke, drink alcohol or caffeine, eat fairly healthy and am not overweight. I have been to the Gp and they don't really know what to say except my risk is very low. Any reassurance would be gratefully received.
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