Slight headache; Feeling nauseous; dizziness; Slight headache; A little lightheadedness/dizziness; Feeling nauseous; hardly any pain; he feels dizzy, his blood pressure goes up; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 56 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 30Mar2021 (Lot number: ER8733) at the age of 56 years as single dose for covid-19 immunisation. Relevant medical history included: "Prostate cancer", start date: 2020 (ongoing); "Severe nasal congestion,all year round seasonal congestion, sinus congestion, clogged ears" (ongoing), notes: Severe nasal congestion,all year round seasonal congestion, sinus congestion, clogged ears; "High blood pressure" (ongoing); "Allergy" (unspecified if ongoing), notes: Just allergic to maybe like 1 certain type of tree; "Does not smoke" (unspecified if ongoing), notes: Does not smoke; "Does not drink" (unspecified if ongoing), notes: Does not drink; "Severe nasal congestion,all year round seasonal congestion, sinus congestion, clogged ears" (unspecified if ongoing), notes: Severe nasal congestion, all year round seasonal congestion, sinus congestion, clogged ears; "Cardiologist said should be taking baby aspirin daily;will take regular if has headache" (unspecified if ongoing), notes: Cardiologist said should be taking baby aspirin daily;will take regular if has headache. Concomitant medication(s) included: LISINOPRIL taken for hypertension (ongoing); FLONASE ALLERGY RELIEF taken for nasal congestion, ear discomfort, start date: 2020 (ongoing); AMLODIPINE taken for hypertension (ongoing); HYDROCHLORZIDE taken for hypertension (ongoing); ASPIRINE taken for headache (ongoing). The following information was reported: PAIN (non-serious) with onset 30Mar2021, outcome "recovered", described as "hardly any pain"; HEADACHE (non-serious) with onset 01Apr2021, outcome "recovered" (01Apr2021), DIZZINESS (non-serious) with onset 01Apr2021, outcome "recovered" (01Apr2021) and all described as "A little lightheadedness/dizziness"; NAUSEA (non-serious) with onset 01Apr2021, outcome "recovered" (01Apr2021), BLOOD PRESSURE INCREASED (non-serious) with onset 2021, outcome "unknown" and all described as "he feels dizzy, his blood pressure goes up"; HEADACHE (non-serious) with onset 08Apr2021, outcome "not recovered", described as "Slight headache"; NAUSEA (non-serious) with onset 08Apr2021, outcome "recovered" (08Apr2021), described as "Feeling nauseous"; DIZZINESS (non-serious) with onset 08Apr2021, outcome "recovered" (08Apr2021), described as "dizziness". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: Patient did not experience any side effects that day. However on Thursday, he had a slight headache, nausea, and dizziness that lasted for 30 minutes. The same thing happened on Friday, only that it did not last as long. He said that until today, he has been experiencing the same thing. He said he still has headache, feels kind of dizzy, and nauseous and it would usually last for 45 minutes. He also mentioned that whenever he feels dizzy, his blood pressure goes up. Consumer wants to know if there is anything he should be worried about and if these reactions are common with the vaccine. He reported having nothing on the day of the vaccine of 30Mar2021, he waited around for 15 minutes after the Pfizer-BioNTech COVID-19 Vaccine was administered had nothing happened. He had nothing that day, no sore arm, or hardly any pain he should say; but starting around night of 01Apr2021 he had onset of slight headache, a little lightheadedness, dizziness and feeling nauseous. He took a Tums and events went away completely after about 30 minutes; so he thought maybe it was just fall out from it being that time of year; and his other medical condition of severe nasal congestion, all year round seasonal congestion, sinus congestion, clogged ears. He recovered completely from those events which went away completely. Today, about 1 hour ago he had onset of some of those events again, starting with slight headache, dizziness and feeling nauseous again which lasted for about 45 minutes before they again went away, he has recovered completely from events other than still having a slight headache at this time which is improved; and which could be a sinus headache. He called to ask if these are common side effects of the Pfizer-BioNTech COVID-19 Vaccine, even happening this long after being administered the Pfizer-BioNTech COVID-19 Vaccine. Aspirin: Start date unknown other than at least over a year ago. Takes 81mg daily; unless he has a headache from like sinus congestion, then he will take 325mg instead. He was just diagnosed with Prostate cancer last year, in 2020. They told him he still has probably 15-20 years before having to do anything; prostate cancer was caught very early with biopsy that showed his PSA level is not at 4 yet, he is at 3.2. He is not receiving any treatment for prostate cancer at this time, they are just monitoring him, checking his PSA level every 3-4 months.  No follow-up attempts are possible. No further information is expected.