 KJ Tree Service has the staff, equipment, and expertise to keep your family, home, and property safe. KJTreeService.com for your free assessment today, or text them at 203-248-TREE. 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.