I ve been experiencing what I can only describe as a fluttering of my heart. It isn t painful at all, no chest constrictions. Yet every minute or so it does feel as if everything kind of slows, then makes me take a deep breath, followed by a slight feeling of light headiness. I am a 32 year old male, active, in good health. My friends are urging emergency care, yet I don t wish to overreact. I have been told in the past by my physician that I have a slightly enlarged heart, and so I don t feel this may be too far outside of regular. Though I have not experienced this before, and it has been since last night. I only had one cup of coffee this morning so I don t believe it s caffeine related. Anyway, any advice would be welcome.