For around a week now i have been feeling heart pounding hard when i wake up, also i feel like a squeeze every while. Fatigue, lightheadedness, blurry vision, and i feel sick to my stomach. I had a blood test everything was fine, also an ECG today and my heart was fine. I'm really hating this, i feel really really tired i cant do anything at all! Standing up and not moving will make me feel realllyyy tired. My vitamin B was 47 so it isnt that low i guess to make me feel like this.