It's (line cut) my heart/heart problem; it gave me a stroke / he had a stroke; flu like symptoms; high blood pressure / blood pressure was high; A-fib started a couple days after getting out of the hospital; stomach issues; This is a spontaneous report received from contactable reporter (Consumer) from medical information team. The reporter is the patient.  A 64-year-old male patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), administered in arm left, administration date 01Nov2021 12:00 (Lot number: 30125BA) at the age of 64 years as dose 2, single for Covid-19 immunisation. Relevant medical history included: "ablation", start date: 2019 (unspecified if ongoing); "AFib" (ongoing), notes: He had A-Fib previously but controlled. There were no concomitant medications. Vaccination history included: Bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE) (Dose:1, Time: 1030-11am, in the left arm, Lot: FE3590), administration date: 11Oct2021, when the patient was 64 years old, for COVID-19 immunization. The following information was reported: CARDIAC DISORDER (hospitalization) with onset Nov2021, outcome "not recovered", described as "It's (line cut) his heart/heart problem"; CEREBROVASCULAR ACCIDENT (hospitalization) with onset Nov2021, outcome "not recovered", described as "it gave him a stroke / he had a stroke"; ATRIAL FIBRILLATION (medically significant) with onset Nov2021, outcome "not recovered", described as "A-fib started a couple days after getting out of the hospital"; ABDOMINAL DISCOMFORT (non-serious) with onset Nov2021, outcome "recovered" (Nov2021), described as "stomach issues"; INFLUENZA LIKE ILLNESS (non-serious) with onset 01Nov2021, outcome "recovered" (04Nov2021), described as "flu like symptoms"; HYPERTENSION (non-serious) with onset 01Nov2021, outcome "not recovered", described as "high blood pressure / blood pressure was high". The patient was hospitalized for cardiac disorder and cerebrovascular accident (start date: 08Nov2021, discharge date: 09Nov2021, hospitalization duration: 1 day). All of the reported events were evaluated at the physician office visit and emergency room visit. The patient underwent the following laboratory tests and procedures: blood pressure measurement: (Oct2021) perfect, notes: 3 weeks prior to the second dose; (01Nov2021) high, notes: blood pressure was high from the minute he had the vaccine; magnetic resonance imaging (MRI): (Nov2021) stroke, notes: MRI conclusion stated he had a stroke. Clinical course: the patient explained within 8 hours of the second dose he had flu like symptoms, this lasted about 3 days. Within 48 hours he had the flu like symptoms plus stomach issues, the stomach issues lasted 4 days. Shortly after, he had a stroke and he has had heart problem and high blood pressure ever since. It was explained that he has gotten better physically other than his heart problems, those were still going on. When asked about his heart problems he explains he has A-Fib and his blood pressure was out of control. He had A-Fib previously but it was controlled until getting the second dose. He had just gone to the doctor 3 weeks prior to the second dose and everything was perfect, blood pressure was perfect. He had an ablation in 2019 and had not had any other episodes of A-fib since then until getting the second dose. His A-fib started a couple days after getting out of the hospital and has been sporadic since then.