Polymyalgia rheumatica; I can't move; it's as if I had a stroke; Now my health is bad. It killed me. That's how bad it was/ If she had not been so healthy she probably would have died; Autoimmune problem; Health is bad; Leg numbness/ The numbness in her legs began the first week of Nov2022 and is not ongoing in her legs but it climbed up and now it is all in her upper body; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 64-year-old female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 12Sep2022 as dose 5 (booster), single (Lot number: GH9694) at the age of 64 years, in arm for covid-19 immunisation. The patient's relevant medical history included: "Fever" (unspecified if ongoing), notes: fever was only in her arm and her arm might have felt a little warm. The patient's concomitant medications were not reported. Vaccination history included: Covid-19 vaccine (DOSE 1, MANUFACTURER UNKNOWN, Route of Administration: intramuscular), for COVID-19 immunisation; Covid-19 vaccine (DOSE 2, MANUFACTURER UNKNOWN, Route of Administration: intramuscular), for COVID-19 immunisation; Covid-19 vaccine (DOSE 3 (BOOSTER), MANUFACTURER UNKNOWN, Route of Administration: intramuscular), for COVID-19 immunisation; Covid-19 vaccine (DOSE 4 (BOOSTER), MANUFACTURER UNKNOWN, Vaccine Administered at Pharmacy), for COVID-19 immunisation. The following information was reported: HYPOAESTHESIA (non-serious) with onset Nov2022, outcome "recovering", described as "Leg numbness/ The numbness in her legs began the first week of Nov2022 and is not ongoing in her legs but it climbed up and now it is all in her upper body"; POLYMYALGIA RHEUMATICA (medically significant), 2 weeks after the suspect product(s) administration, outcome "unknown"; CEREBROVASCULAR ACCIDENT (medically significant), outcome "unknown", described as "I can't move; it's as if I had a stroke"; NEAR DEATH EXPERIENCE (medically significant), outcome "unknown", described as "Now my health is bad. It killed me. That's how bad it was/ If she had not been so healthy she probably would have died"; AUTOIMMUNE DISORDER (medically significant), outcome "unknown", described as "Autoimmune problem"; GENERAL PHYSICAL HEALTH DETERIORATION (non-serious), outcome "unknown", described as "Health is bad". The events "polymyalgia rheumatica" and "leg numbness/ the numbness in her legs began the first week of nov2022 and is not ongoing in her legs but it climbed up and now it is all in her upper body" required physician office visit. The patient underwent the following laboratory tests and procedures: Blood test: polymyalgia rheumatica. Therapeutic measures were taken as a result of polymyalgia rheumatica, autoimmune disorder, hypoaesthesia. Clinical course: As per transferring agent: Caller would like to know if Pfizer is coming out with another booster. Also, if she should get it, because she was diagnosed with polymyalgia rheumatica two weeks after she received the booster dose. She said her rheumatologist prescribed her steroids so she can live. She was extremely healthy, but the booster activated something in her body that caused her to have polymyalgia rheumatica. She had this creeping disease, it was horrible. She was held up inside my own body. She had an autoimmune problem and it caused her to have the disease polymyalgia rheumatica. Her friend did research and said she needed to report this as she was extremely healthy and they were on vacation and were running from place to place and she felt like her legs were numb and now that has climbed up her body and it felt like she was having a stroke and she does not know how many times this happens to people. If she had not been so healthy, she probably would have died and she did not have a reaction with any of the others and this was the 5th booster. The numbness in her legs began the first week of Nov2022 and was not ongoing in her legs but it climbed up and now it was all in her upper body and she had no use of her hands or in her arms and it went to her shoulders and her shoulders kill her and it went to her neck and went to her other arm which is her left arm; the numbness was first in the right arm and then in her left arm. For the numbness in her left arm it was totally improved because she got in with a rheumatologist and was taking steroids. Does not know which arm this dose was administered to and she rotated on her arms and does not know if it was her right or left and believes it was her right arm. She does not take any medications and did not take any before this and now with this jeez she can't move. She had to get in with a specialist that was a rheumatologist and they did about a million blood tests; those tests were done after she got the booster and when she went the results proved she has that and there was nothing before and all of a sudden this happened and it might not be from that but it is weird how it just happened; they said it was autoimmune and when she got the booster, it probably activated that in her blood stream. She did not received prior vaccinations with 4 weeks. She was totally good prior to vaccination. She did not had any family medical history relevant to adverse events.