I definitely have lost the sense of taste and smell/ Loss of smell and taste; I definitely have lost the sense of taste and smell/ Loss of smell and taste; brain fog/ it was weird that of all things; 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 75-year-old male patient received BNT162b2 (BNT162B2), on 24Mar2021 as dose 2, single (Lot number: ER8733) at the age of 74 years for covid-19 immunisation. The patient's relevant medical history included: "Loss of smell", start date: 24Mar2020 (unspecified if ongoing), notes: He carried 3 things over. Loss of smell, and from 24Mar2020. The patient's concomitant medications were not reported. Vaccination history included: BNT162b2 (Dose: 1, Lot: EN6206), administration date: 03Mar2021, when the patient was 74-year-old, for COVID-19 Immunization. The following information was reported: AGEUSIA (non-serious), ANOSMIA (non-serious), outcome "unknown" and all described as "I definitely have lost the sense of taste and smell/ Loss of smell and taste"; FEELING ABNORMAL (non-serious), outcome "unknown", described as "brain fog/ it was weird that of all things".  Additional information: Caller stated that he remembers that, at the beginning of the pandemic, everybody talked about brain fog. "It was all about brain fog. Back when COVID first hit, everyone said brain fog was a side effect of the vaccine".  Received call from consumer regarding the Pfizer COVID vaccine. He was reading through most recent publication on effects of drug dated 29Mar2022. Question. From Day 1 (Name) i was talking about brain fog. This article does not mention and the he is not sure if Pfizer site. He wants to know what became of the brain fog. The publication last page has Pfizer logo. Beneath it it has Biontech. He did not wish to provide an address or email. He has had brain fog. If the patient wanted to get technical about it, the medical dictionary described brain fog and a couple of other manuals describe it as confusion. Everyone, the CDC, (Name) and the whole bunch said brain fog and it actually means confusion. He carried 3 things over. Loss of smell, and from 24Mar2020 (he later stated his vaccine was 03Mar2021) when he had injection and 2nd one. He was a volunteer at VA clinic. He rolled the same guy in the clinic on 2 occasions. The first time they put him in a room, scrubbed him down and put clean clothes on him. The 2nd time they evacuated the office. He asked what was going on and why did they evacuate the office and they said, "can't you smell him" He said no. The taste is about the same. He can taste things occasionally. The fist vaccine was no big deal and took 2nd one at drive through at health department site where EMT's gave it. He did not feel either shot. Two days later after getting the 2nd shot, he had every symptom except one, which was fever. He detailed it and wrote it down and documented how many days it lasted. Some lasted 2 days and some lasted a week. He was out of work 6 weeks with it. He said it was weird that of all things, he never got a fever. He had a digital thermometer and it is within a 10th of a degree of the ones at the VA. He did not have his paper that he had written everything down on with him and did not wish to complete report. The VA was requiring him to have his vaccine card with him to get in the door, so he kept his Vaccine card in the truck. 2nd dose was given on 24Mar2021 with Lot ER8733, expiration is unknown. He confirmed that both doses were the Pfizer COVID vaccine. He stated that (name withheld) was using Moderna, but they got some Pfizer from another county and he got the Pfizer ones.