 800-575-6814. 800-575-6814. Tax relief advocates, real solutions for real people. Must qualify for enrollment. Results may vary. I'm Kareem Abdul-Jabbar. I learned about atrial fibrillation the hard way. My symptoms would come and go. Shortness of breath, fatigue. I kept going. Then I got so lightheaded, I couldn't. My doctor said I have AFib, so I'm about five times more likely to have a stroke.