Stiffness in arm/stiffness in a couple of her fingers/Stiffness in her little finger and finger beside; She just received the Flu vaccine on same day as booster dose Fluzone Quad PF 2022-2023 INJS; She just received the Flu vaccine on same day as booster dose Fluzone Quad PF 2022-2023 INJS; Her arms are sore on both sides; 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 64-year-old female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 28Oct2022 as dose 4 (booster), single (Lot number: GH9703) at the age of 64 years, in left arm for covid-19 immunisation; influenza vaccine inact split 4v (FLUZONE QUADRIVALENT), on 28Oct2022 as dose number unknown, single (Batch/Lot number: unknown), in right arm for immunisation. The patient's relevant medical history included: "Acid reflux over the counter" (unspecified if ongoing); "Blood pressure" (unspecified if ongoing); "Narcolepsy" (unspecified if ongoing). Concomitant medication(s) included: METHYLPHENIDATE; METHYLPHENIDATE HCL; AMLODIPINE taken for blood pressure abnormal. Vaccination history included: BNT162b2 (DOSE 1, SINGLE; Lot number: ER8729; Expiration Date: 31Jul2021), administration date: 07Apr2021, when the patient was 63-year-old, for COVID-19 immunization; BNT162b2 (DOSE 2, SINGLE; Lot number: EW0172; Expiration Date: 31Aug202), administration date: 28Apr2021, when the patient was 63-year-old, for COVID-19 immunization, reaction(s): "our arms hurt worse"; BNT162b2 (DOSE 3 (BOOSTER), SINGLE; Lot number: FG3527), administration date: 03Nov2021, when the patient was 63-year-old, for COVID-19 immunization; Flu vaccine (Anatomical location: Left arm), for Immunisation. The following information was reported: PAIN IN EXTREMITY (non-serious) with onset Oct2022, outcome "recovered" (Oct2022), described as "Her arms are sore on both sides"; OFF LABEL USE (non-serious), PRODUCT USE ISSUE (non-serious) all with onset 28Oct2022, outcome "unknown" and all described as "She just received the Flu vaccine on same day as booster dose Fluzone Quad PF 2022-2023 INJS"; MUSCULOSKELETAL STIFFNESS (non-serious) with onset 30Oct2022, outcome "not recovered", described as "Stiffness in arm/stiffness in a couple of her fingers/Stiffness in her baby finger and finger beside". Therapeutic measures were taken as a result of pain in extremity.  Additional Information: When inquired about weight, patient reported that it was all COVID weight. Patient received the new booster dose and had since been having stiffness in a couple of her fingers. Stiffness in her baby finger and finger beside. She relayed that her neighbor had the same side effect. Patient inquired if you got arm pain, was that a good thing because it meant it was working. Stiffness in arm, mom and sister never got arm pain, 30-year-old son had all over body stiffness and muscle pain with first shot and so did his friend, Son and friend had muffled ear, felt like there was water in ear but it was better within 24 hours. Stated she drank body armor before and after shots each time to decrease side effects. Patient inquired if vaccine could be given in the hip instead of the arm. Reporter was calling about the COVID-19 Vaccine Booster, the latest one with variants with the vaccine. She got her shot on the 28th and on approximately the 30th in the arm she got the shot her baby finger and finger next to that finger was very stiff. She did not have arthritis. She went to the store with her neighbor and was talking about how they were in red and wore a mask everywhere. She wore the one around neck and put mask on and have people in the store with mask on joined club. She did get the last shot and her neighbor had got hers. Her neighbor fingers were stiff as well and hers was the same thing except in her neighbor thumb and finger next to thumb in the same arm got shot in. Reporter called where got the shot and then called Pfizer to see if had heard about it or if it will go away and what to do about it. She noticed it and knew her mom and sister got the shot a week and half before her. She received the shot as her and her sister took turns staying with mom after her father died. Her mom and sister got the shots together and reporter got her flu shot and booster at same time. Her arms were sore on both sides. Her mom and sister were calling her a baby and stuff and reporter did not notice the stiffness till soreness in arm left. She knew she was not to sleep on arm but got her flu shot in the other arm. Last time she got the flu shot in same arm and would do that next time. It was hard when side sleeper. She used blue emo which was a gel for arthritis and the soreness went away and wore off 6-8 hours later and she reapplied and took with Advil and the soreness went away within a day and half. It stayed about the same. She stated if it was what arthritis felt like, she felt sorry for those that had arthritis. Her parents got Pfizer as well as her brother and sister got Pfizer and she did not want to get COVID. Her best friend worked for health department and her girlfriend made an appointment. She was told the M one to not get that one as everyone in her friend office got sick from the M one and why she went with Pfizer. She received the booster because of her mother who was 86 years old and because 15 family members went to a graduation party and wedding and all 15 got COVID and all but 3 had vaccinations and she could not imagine what would be like. She stated 1 booster she did not receive. She had a couple family members got COVID and one got Pneumonia as he was a marine and prison guard and got when first started. Her family member just laid around on the couch and ended up with Pneumonia and she knew now people were told to move around. Patient did not have prior Vaccinations (within 4 weeks). She just received the Flu vaccine on same day as booster dose. Fluzone Quad PF 2022-2023 INJS. She only knew just that whole family got sick like her cousin and her cousin husband and ones that were married did not get sick and that it was wedding party that had all gone to a graduation party and figured grad party was where the people got sick. She stated went down like flies. She stated one even had a kidney transplant but had no details as to who was vaccinated and who was not. All she knew was that all but 2 or 3 were vaccinated. Concomitant included Methylphenid ER which was the generic for Ritalin. Also included Acid reflux over the counter. No investigations were conducted. The report was not related to a study or programme.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202201283020 similar report from same reporter;US-PFIZER INC-202201283021 similar report from same reporter;