Hey guys! I'm having an issue and honestly don't know where to go from here. Heres a short backstory, Im 24 year old male very slim 115 pounds 5 feet 6 inches, i eat very healthy and eat junk maybe once or twice a week. Im a very hyper and an active guy, from soccer to the gym to running i do it all. Since 2013 until now I've had heart fluttering/abnormal heart beats about once a month/twice the most.Mostly when I'm relaxing BUT it has happened about 3 times when i have *********d but never during sexual intercourse or sports! I can describe this feeling as a flutter/flipflop/abnormal heart rhythm that last about 5-10 seconds. i feel it mostly from the center left of my chest when this happens i do not feel any type of dizziness, fainting, pain, not even shortness of breath. The only thing i feel is the "flip flopping" if you will, along with a small rush of almost like adrenaline. I have quit smoking 50 days ago but had two cigarettes the day before it happened again along with some liquor(April 12 2015). I do drink coffee but not on the regular but i don't feel as i am sensitive to it because it doesn't always happen when i have coffee. I have had history of panic attacks but can differentiate them from this issue easily. And i can say i do have a bit of anxiety. Of course all this prompted me to go to the Cardio. My blood tests were good except i was low on Vitamin D and have been taking D3 5000 units a day for a month and a half now. My EKG was good and my Echocardiogram was good. I have started taking very low doses of Magnesium a day along with Omega 3s. I honestly just please need some guidance as to what to do next or further details on this condition my cardio says I'm perfectly fine but of course i don't feel as i am. Thank you everyone!