Headache; Joint pain; I did not want to eat; It was in my left arm. It is still sore; Last night it was bothering me real bad like as if somebody has taken a great big drill & drilled the hole in/did not feel good; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 84 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 04Apr2022 13:00 (Batch/Lot number: unknown) at the age of 84 years as dose 4 (booster), single for covid-19 immunisation. Relevant medical history included: "high blood pressure" (unspecified if ongoing), notes: Consumer stated, The medicine keeps it down.; "Cholesterol" (unspecified if ongoing), notes: Cholesterol Medicine. Concomitant medication(s) included: FLU taken for immunisation. Vaccination history included: Bnt162b2 (DOSE: 1, haven't had reactions with it before), administration date: 05Jan2021, when the patient was 83 years old, for COVID-19 Immunization, reaction(s): "haven't had reactions with it before"; Bnt162b2 (DOSE: 2, haven't had reactions with it before), administration date: 26Jan2021, when the patient was 83 years old, for COVID-19 Immunization, reaction(s): "haven't had reactions with it before"; Bnt162b2 (DOSE: 3 (BOOSTER), haven't had reactions with it before), administration date: 28Sep2021, when the patient was 84 years old, for COVID-19 Immunization, reaction(s): "haven't had reactions with it before". The following information was reported: PAIN IN EXTREMITY (non-serious) with onset 04Apr2022, outcome "recovering", described as "It was in my left arm. It is still sore"; FEELING ABNORMAL (non-serious) with onset 04Apr2022, outcome "unknown", described as "Last night it was bothering me real bad like as if somebody has taken a great big drill & drilled the hole in/did not feel good"; HEADACHE (non-serious) with onset 05Apr2022, outcome "unknown", described as "Headache"; ARTHRALGIA (non-serious) with onset 05Apr2022, outcome "unknown", described as "Joint pain"; DECREASED APPETITE (non-serious) with onset 05Apr2022, outcome "unknown", described as "I did not want to eat". Therapeutic measures were taken as a result of pain in extremity, feeling abnormal, headache, arthralgia, decreased appetite.  Additional information: Any vaccination before getting Pfizer Covid-19 vaccination was reported as Flu shot every year (further clarification unknown hence suspect captured as per verbatim). Patient takes high blood pressure medicine, yes (further clarification unknown) and stated, the medicine keeps it down and also a Cholesterol Medicine (further clarification unknown). Patient (Pt) think so, like when they gave the shot. It was not too bad. It was in left arm. It was still sore. But not anything like it was last night. Last night it was bothering me real bad like as if somebody has taken a great big drill & drilled the hole in you know.  It was real painful and this morning Pt had a headache and she did not feel good, Pt did not want to eat and guess kind of a joint pain and states she did not have that reaction before. The last one Pt got, the person that gave her the shot was not very gentle and she jabbed her. But this lady that gave Pt one yesterday, she was real gentle. But it was like Pt was having lots of trouble (further clarification unknown) and if Pt touch her arm right now. It is still sore. But not anything like it was last night and Pt just figured and needed to report it because Pt haven't had reactions with it before. But Pt was just kind of, Pt got a little lousy(further clarification unknown), Pt did not want to eat or anything. So, what should pt do about getting another one whenever the time comes. Treatment taken for the adverse events reported as only Tylenol.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.