This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient. A 81 year-old female patient received bnt162b2 (BNT162B2), intramuscular, administered in arm left, administration date 06Oct2021 (Lot number: FF2590) at the age of 81 years as dose 3 (booster), single for Covid-19 immunisation. Relevant medical history included: "cancer" (unspecified if ongoing), notes: cancer 2 years ago. I am taking one for bone density and Somatostatin' 40 mg, I only take half 20 mg. Concomitant medication(s) included: ALENDRONATE SODIUM taken for osteoporosis (ongoing); ANASTROZOLE taken for breast cancer; SIMVASTATIN taken for blood cholesterol increased (ongoing). Vaccination history included: Flu shot (Route: Muscular, Anatomical site of injection: Arm), administration date: 27Sep2021, when the patient was 81 years old, for immunization; Bnt162b2 (Dose: 1, morning, Anatomical Site of injection: Left upper arm, Route: intramuscular, Batch/lot number: EI9262), administration date: 30Jan2021, when the patient was 81 years old, for COVID-19 immunization; Bnt162b2 (Dose: 2, morning, Anatomical Site of injection: Left upper arm. Route: intramuscular, Batch/lot number: EN6200), administration date: 23Feb2021, when the patient was 81 years old, for COVID-19 immunization. The following information was reported: HEADACHE (non-serious) with onset 06Oct2021, outcome "recovered" (07Oct2021), described as "Headache"; PALPITATIONS (non-serious) with onset 06Oct2021, outcome "recovered" (07Oct2021), described as "Heart is racing and it is racing all night". Therapeutic measures were not taken as a result of headache, palpitations. Additional information: My height is 5 feet 3 and it used to be 5 feet 4 or 3 and a half, I am shrunk a little. I did get a Flu Shot (Unspecified Flu Shot) about a week or 2 weeks something like that. Consumer stated, "You know I have done many clinical studies myself. I got a booster yesterday. I was wondering where I can report side effects. Are you keeping a track of all of them at Pfizer? I wanted to find out like I said, I have done clinical studies and always reported the adverse event (Further clarification was unknown) I just wondering are you collecting the booster Shot adverse event or you not collecting them." Consumer added, "So, I had the Pfizer booster (Clarified as Pfizer COVID-19 Vaccine) yesterday and then I got a headache most of the yesterday, even this morning, I have a little bit but much stronger last evening and then also my heart is racing and it is racing all night. So, I just wanted to report those 2 things." Email: # (Not spelled, hence not captured in tab). Consumer stated, "Now I am retired but I used to be in a biotech company. That's why I know we used to report all our adverse event that's why I wanted to report." (Further clarification was unknown, hence captured as consumer or non-health professional by default) Consumer added, "I have no problem with the first two shots, only the booster". Reason for no lot number: of Unspecified Flu Shot: Other: Could not be probed since the medication was Unspecified. Consumer stated, "Well, I was supposed to get it at 11:45. I don't know if I got it 5 minutes later or earlier but around 11:45. I am just checking to see. The time is not written here. "Prior vaccination (4 weeks) consumer stated, "I told you 2 weeks ago I had the flu shot." No follow-up attempts are possible. No further information is expected.