My name is Bruno, I am 17year old & I took the Pfizer shot in 2021

Another vaccine injury, pericarditis.

Pericarditis
Medical Condition (new)
Pericarditis is inflammation of the pericardium, the fibrous sac surrounding the heart. Symptoms typically include sudden onset of sharp chest pain, which may also be felt in the shoulders, neck, or back. The pain is typically less severe when sitting up and more severe when lying down or breathing deeply. Wikipedia