Patient received the 2nd dose of his HPV vaccine on Tuesday 1/14/2025 morning (he received his 1st dose without issues). He woke up at 6-7 PM with chills, shivering, and temp 100.2F so mom gave him ibuprofen with relief. On Wednesday 1/15/2025, he began to complain about his chest “feeling weird” at 6-7PM, after which mom gave him his newly prescribed albuterol inhaler with relief. On Thursday 1/16/2025, he called mom from school at 11AM to ask if she can bring his inhaler because now he was having sternal chest pain (no radiation). He was fine until 9PM that evening when his sternal chest pain returned with associated shortness of breath, grunting, and “not feeling good”, thus prompting presentation to Hospital. Found to have and treated for myopericarditis. Will follow up outpatient with Cardiology.