I'm not really sure what's going on, but I'll provide some back-story. I haven't talked to my doctor yet, but I'll get ahold of him asap. I'm a 22-year-old male, healthy, and attending school. I have no known disorders or diseases, aside from a mild heart defect where sometimes the blood in my heart gets backwashed (I forget what this was called, but was informed it is largely inconsequential). I had an ECG and heart ultrasound a few years ago for an episode of tachycardia and those came back fine. Skipping forward, a month ago I had a panic attack. This was not the first, but following the attack I have been feeling off. My extremities are cold all the time. They go blue outside and my fingernails are always purple. I have checked with a doctor and he said, "wear gloves" and that my capillaries were fine, but the problem persists. I have now begun to experience 'heart flutters', that is, a feeling that my heart seizes, flutters, then continues on its way. These happens throughout the day and are usually preceded by a skipped beat and followed by a hard pound in my chest. I am not experiencing chest pain of any noticeable quality, but am experiencing a bit of light-headedness. I have not passed out. I also experiencing twitching, anxiety, and vision problems. I have seen a neurologists and an optometrist, both of which said I was fine. My MRI of the spine and brain came back fine, with only mild discal bulging near my neck (I forget which one exactly). My vision tests came back normal.
Any ideas?