inflammation around the heart or the heart lining; This is a spontaneous report received from a non-contactable reporter(s) (Consumer or other non HCP). The reporter is the parent.  A male patient received bnt162b2 (BNT162B2) (Batch/Lot number: unknown) as dose 2, single for covid-19 immunisation. Relevant medical history included: "COVID-19" (unspecified if ongoing), notes: Now, he already had COVID in March the clinic said it was fine to get the Vaccine now. The patient's concomitant medications were not reported. Vaccination history included: Covid-19 vaccine (DOSE X MANUFACTUERER UNKNOWN (where X=1)), for covid-19 immunization. The following information was reported: PERICARDITIS (medically significant), outcome "not recovered", described as "inflammation around the heart or the heart lining". The patient underwent the following laboratory tests and procedures: electrocardiogram: inflammation around the heart or the heart lining, notes: inflammation around the heart or the heart lining; x-ray: unknown results. Dates for He got the second shot, 3 days later he was having problems and he was still having issues. This is the first Case out of two split cases. Reporter seriousness for He got the second shot, 3 days later he was having problems and he is still having issues. Reporter have already made a report and they connect me to the medical Info. Is there way that you can. When informed an agency, reporter stated, yes, reporter know that, but they had connected me to the medical info when reporter had called about my son, told them what is going on and she put me on hold and then she said hold on a second and she connected me to the medical info department. That is what she said. Patient had discussed with them about my son because the day after he got the second shot, 3 days later he was having problems and he is still having issues and I am calling because we have already been to the doctor, they took blood work, they took X-ray, they took an EKG and she was saying that it that it causes like inflammation around the heart or the heart lining (Further not clarified. Hence, not captured in tab.) and they took and EKG they did not take a heart echo cardiogram but it's like he has been going through this and it's going to be 2 weeks. He is having a shot now 2 weeks and how long does this last or what should he do because actually the clinic didn't say the nothing. It took four days to get the report back from the EKG which should only it took a day because the blood work in chest X-ray come back like quick. When paraphrased the concern, reporter stated, yes, and reporter other son withheld got the Vaccine. Now, he already had COVID in March the clinic said it was fine to get the Vaccine now my other son he got the first part and ever since then he still has shortness of breath, he has chest heaviness, he has fatigue and he cant even wake up for their work and they got it at same day. Reporter was informed about the role of an agency for the concern and was provided with the contact for Medical Information as, Option 3, and was informed that the department is open from Monday to Friday, from 8 am to 8 pm as per EST. Reporter hung up the call abruptly. Hence, limited information available. Thus, product details (NDC#, UPC#, LOT# and expiry date) could not be probed over the call. This W2021389655 is crosslinked with W2021389651.   No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.