⁣Once a healthy, active and avid mountain biker, Kyle Warner got the Pfizer shot and experienced a sharp decline in his health soon afterwards. 3 weeks after the shot, he was suffering from fatigue and heart problems. Kyle was diagnosed with Pericarditis, swelling of the heart and POTS (⁣Postural Orthostatic Tachycardia Syndrome), which manifests as an increase in heart rate when he stands up after laying down. Both himself and his girlfriend had the Pfizer shot, but only he has had an adverse reaction thus far (unless the girlfriend got saline?).