Hey. I’m 23, healthy, 5’10” and 120 lbs. Perfect blood work, super strong—but I can’t seem to stay awake through the day or even get through moderate activity without fast heart rate and exhaustion. I’ve had symptoms for years and years, but was just diagnosed with vasovagal/autonomic dysfunction after a positive tilt test. Apparently, my heart rate drops when my blood pressure does—but at the same time, when I stand up, my heart rate shoots up about 30 bpm immediately and sticks around there for a few minutes before going down. It goes up to about 150 sometimes when I’m just moving around, an