Arrhythmia; A-fib; small nerve neuropathy; had extreme fatigue; brain fog; she has difficulty processing information and engaging with folks which is pretty extreme; pins and needle sensations in her hands feet and across her back; cannot walk at present; stated that she is in a wheelchair; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP).  A female patient received BNT162b2 (BNT162B2), on 27Dec2021 as dose number unknown (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Covid-19 vaccine (primary immunization series complete), for COVID-19 immunization. The following information was reported: ARRHYTHMIA (medically significant), outcome "unknown"; ATRIAL FIBRILLATION (medically significant), outcome "unknown", described as "A-fib"; NEUROPATHY PERIPHERAL (medically significant), outcome "unknown", described as "small nerve neuropathy"; FATIGUE (non-serious), outcome "unknown", described as "had extreme fatigue"; FEELING ABNORMAL (non-serious), outcome "unknown", described as "brain fog"; LOSS OF PERSONAL INDEPENDENCE IN DAILY ACTIVITIES (non-serious), outcome "unknown", described as "she has difficulty processing information and engaging with folks which is pretty extreme"; PARAESTHESIA (non-serious), outcome "unknown", described as "pins and needle sensations in her hands feet and across her back"; GAIT DISTURBANCE (non-serious), outcome "unknown", described as "cannot walk at present"; WHEELCHAIR USER (non-serious), outcome "unknown", described as "stated that she is in a wheelchair". Clinical course: Reporter was stated that she was calling on behalf of a friend and that she was a clinical social worker. Stated that her friend had the initial series and then the first booster on 27Dec. Stated that she has had a cascade of debilitating symptoms since then. Stated that she knows that Pfizer was immune from litigation about adverse reactions to vaccine. Wanted to know if Pfizer was doing anything to support people who are vaccine injured. Clarified that this was for the COVID-19 vaccine. Stated that she knows that there was a program internal to Pfizer for people who are debilitated by the vaccine to access resources. Stated that her friend was in a wheelchair. Stated that she was a dancer. Stated that she will need support. Stated that there was a federal program to help folks but that it only covers five days of missed work. Stated that her friend had cardiac symptoms including arrhythmia and a-fib, had extreme fatigue and small nerve neuropathy like pins and needle sensations in her hands feet and across her back. Stated that she cannot walk at present. Stated that she has brain fog which was why she was doing the calling. Stated that she has difficulty processing information and engaging with folks which was pretty extreme. Stated that she was the picture of health before this happened. Stated that this was multi-system and it appears that no one knows how to treat it. Reporter details: Is a clinical social worker. Is not calling on behalf of a healthcare provider. Email address captured as provided.  The information on the batch/lot number for BNT162b2 has been requested and will be submitted if and when received.