She has a weird kind of like vertigo; it makes her arm a little sore; she has problems thinking, brain fog when she is playing piano and stuff; disoriented; brain fog; rapid heartbeat; over the last six months she was thinking she was get Alzheimer's; dizziness; unbalanced issues; fatigue; 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 72-year-old female patient received BNT162b2 (BNT162B2), on 02May2022 as dose 4 (booster), single (Lot number: FJ4991) at the age of 71 years intramuscular, in left arm for covid-19 immunisation. The patient had no relevant medical history. The patient's concomitant medications were not reported. Vaccination history included: BNT162b2 (1st dose: Date: 25Jan2021. , Time: not probed. , Route of Administration: intramuscular. , Batch/Lot number: EL9263.), administration date: 25Jan2021, when the patient was 70-year-old, for COVID-19 Immunization, reaction(s): "All her vaccine doses would be given on left side/it makes her arm a little sore", "She has had dizzy spells for over a year"; BNT162b2 (2nd dose: Date: 15Feb2021. , Time: not probed. , Anatomical Site of injection: left arm. , Route of Administration: intramuscular. , Batch/Lot number: EN6201.), administration date: 15Feb2021, when the patient was 70-year-old, for COVID-19 Immunization, reaction(s): "All her vaccine doses would be given on left side/it makes her arm a little sore", "She has had dizzy spells for over a year"; BNT162b2 (3rd dose: Date: 21Sep2021. , Time: not probed. , Anatomical Site of injection: left arm. , Route of Administration: intramuscular. , Batch/Lot number: FC3183.), administration date: 21Sep2021, when the patient was 70-year-old, for COVID-19 Immunization, reaction(s): "All her vaccine doses would be given on left side/it makes her arm a little sore", "She has had dizzy spells for over a year". The following information was reported: VERTIGO POSITIONAL (non-serious) with onset 02May2022, outcome "not recovered", described as "She has a weird kind of like vertigo"; FEELING ABNORMAL (non-serious) with onset 2022, outcome "unknown", described as "brain fog"; DISORIENTATION (non-serious) with onset 2022, outcome "unknown", described as "disoriented"; DIZZINESS (non-serious) with onset 2022, outcome "not recovered"; FATIGUE (non-serious) with onset 2022, outcome "not recovered"; VACCINATION SITE PAIN (non-serious) with onset 2022, outcome "not recovered", described as "it makes her arm a little sore"; DEMENTIA ALZHEIMER'S TYPE (medically significant) with onset 2022, outcome "not recovered", described as "over the last six months she was thinking she was get Alzheimer's"; HEART RATE INCREASED (non-serious) with onset 2022, outcome "unknown", described as "rapid heartbeat"; DISTURBANCE IN ATTENTION (non-serious) with onset 2022, outcome "unknown", described as "she has problems thinking, brain fog when she is playing piano and stuff"; BALANCE DISORDER (non-serious) with onset 2022, outcome "not recovered", described as "unbalanced issues". The events "over the last six months she was thinking she was get alzheimer's", "dizziness", "unbalanced issues", "fatigue", "she has a weird kind of like vertigo", "it makes her arm a little sore", "she has problems thinking, brain fog when she is playing piano and stuff", "disoriented" and "brain fog" required physician office visit. The patient underwent the following laboratory tests and procedures: Electroencephalogram: negative; Heart rate increased: rapid heartbeat; Magnetic resonance imaging head: negative; negative. Clinical Course: This was a booster dose because patient have had 5 doses. Patient had the dizziness coming on for a while and it got worse with the last two that she got. Her symptoms are dizziness and unbalanced issues, rapid heartbeat. Patient had to been to every doctor known to man. Patient had been to two neurosurgeons, neurologist, heart doctor, breathing doctor, 3 ENT's and no one can find anything wrong with her. They just kept asking her if she have had Covid. Patient did not have Covid. She read the symptoms online, they are not going away, she has had them now for the last 6 months, they are getting worse and worse and she doesn't know what to do. She would like to know, since enough people know have it that they must know about this, if this is going to go away? She knew when it came out they didn't know what side effects would be, but she is hoping they will have information now. She just had her last COVID vaccine a few months ago. Her symptoms have something to do with position and movement of her head, it gets worse. She has a handwritten vaccine card, NDC/EXP were not provided for her doses of the vaccine. All her vaccine doses would be given on left side because she is right-handed and it makes her arm a little sore, so she thinks they were all given in left arm. After her fourth dose was given 02May2022, it has been since that it got really bad. She has a weird kind of like vertigo, but the world doesn't spin, it has to do with position of her head and gets better when she lays down and doesn't move, when she was immobile. She can be in the car driving and it happens. It seems to happen more in the car for some weird reason, maybe movement. At first when she started getting it, it was occasional, and she didn't think about it. The last six months it has been all the time, and it doesn't go away. She has had dizzy spells for over a year. When she first had it, they would last 30 seconds then be gone. She was very physical and rides horses, and over the last six months she was thinking she was get Alzheimer's, she has problems thinking, brain fog when she is playing piano and stuff. It seems to be positional, with her head and neck and arms. She thought it had to do with her back, so she went to the two neurologists and two neurosurgeons. They said her symptoms are similar to COVID if that is what is being reported, but she didn't have COVID, and did not have reactions to COVID shot other than a sore arm. She had four shots, and it is horrible now, the dizzy spells don't go away. The doctors couldn't find anything wrong with her. She has dizzy spells, unbalance issues, if she moves her head too fast from one side to the other or up and down, it is like a carnival ride or something.