leukopenia, "neutrophils were low; white blood count was low; lymphocytes were high; mean platelet was high; ANC was 1.81; monocytes are high; leukopenia, "neutrophils were low; Neutropenia; had her booster and her flu shot on 28Sep2021; booster dose; 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 75 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 28Sep2021 (Batch/Lot number: unknown) at the age of 75 years as dose 3 (booster), single for covid-19 immunisation; influenza vaccine (FLU), administered in arm right, administration date 28Sep2021 (Batch/Lot number: unknown) as dose number unknown, single for immunisation. Relevant medical history included: "Sjogren's" (ongoing); "Rheumatoid arthritis" (ongoing); "autoimmune conditions" (unspecified if ongoing). Family history included: "Rheumatoid arthritis" (unspecified if ongoing). There were no concomitant medications. Vaccination history included: Bnt162b2 (Lot Number: EN5318 , Expiry: 31May2021, Dose:1), administration date: 12Feb2021, when the patient was 74 years old, for COVID-19 immunization; Bnt162b2 (Lot Number: EN5318 , Expiry: 31May2021, Dose:2), administration date: 05Mar2021, when the patient was 74 years old, for COVID-19 immunization, reaction(s): "Trigeminal neuralgia", "Headache"; Flu shot, for Immunization, reaction(s): "seemed like her glands swelled up"; Polio shots, for Immunization. The patient had her 1st COVID shot in Feb2021, she had her 2nd COVID shot on 05Mar2021 and she did have something that happened after that which she thinks that she blamed on the shot but she doesn't know for sure if it was from that. Let's just say she ended up in the emergency room with having her brain scanned one day, twice. She had her 1st shot and she had her 2nd shot and then in Sep2021 she had her 3rd shot and at the same time she had a flu shot.  The following information was reported: IMMUNISATION (medically significant) with onset 28Sep2021, outcome "unknown", described as "booster dose"; LEUKOPENIA (medically significant), NEUTROPHIL COUNT ABNORMAL (non-serious) all with onset Oct2021, outcome "not recovered" and all described as "leukopenia, "neutrophils were low"; NEUTROPENIA (medically significant) with onset Oct2021, outcome "not recovered", described as "Neutropenia"; PRODUCT USE ISSUE (non-serious) with onset 28Sep2021, outcome "unknown", described as "had her booster and her flu shot on 28Sep2021"; WHITE BLOOD CELL COUNT DECREASED (non-serious) with onset Oct2021, outcome "not recovered", described as "white blood count was low"; LYMPHOCYTE COUNT INCREASED (non-serious) with onset Oct2021, outcome "not recovered", described as "lymphocytes were high"; MEAN PLATELET VOLUME INCREASED (non-serious) with onset Oct2021, outcome "not recovered", described as "mean platelet was high"; NEUTROPHIL COUNT ABNORMAL (non-serious) with onset Oct2021, outcome "not recovered", described as "ANC was 1.81"; MONOCYTE COUNT INCREASED (non-serious) with onset Oct2021, outcome "not recovered", described as "monocytes are high". The events "leukopenia, "neutrophils were low", "neutropenia", "leukopenia, "neutrophils were low", "white blood count was low", "lymphocytes were high", "mean platelet was high", "anc was 1.81" and "monocytes are high" were evaluated at the physician office visit and emergency room visit. The patient underwent the following laboratory tests and procedures: blood test: (Mar2021) normal; lymphocyte count: (Oct2021) high; monocyte count: (Oct2021) high; neutrophil count: (unspecified date) 1.81; (Oct2021) low; platelet count: (Oct2021) high; scan: (unspecified date) carotid arteries which are perfectly fine; scan brain: (Mar2021) unknown results, notes: had two brain scans; white blood cell count: (Oct2021) low.In Oct2021, around 04Oct2021 and 14Oct2021, she had her normal visit with the hematologist and now she has leukopenia, neutropenia, her white blood cells are low, her mature neutrophils are low, her lymphocytes are high, her monocytes are high and her platelets are high. She just has a curious mind about these. She has what her doctors calls autoimmune conditions, supposedly she has rheumatoid arthritis and she has never been told that she has that but she does, and she has Sjogren's. Her doctor said that these changes in her labs could have been because of her autoimmune conditions but could they have been from the Pfizer vaccines maybe? She is also wondering if this question has been asked by other people, she doesn't know.She confirmed that she had two brain scans a week and a half after she had her 2nd dose. She had a strange pain that started happening in her head and she had waited a week before going to the emergency room. She was at a woman's breakfast and she knew that when she got done with the program that morning that she was going to go down the street to the hospital because it was not normal for her to have pain in her head. They took her right in and she got the scans and they told her that she had trigeminal neuroglia which they don't say what to do about it. She still has it, but it is not like it was that day. She has had 2 more scans and later on they were looking at her carotid arteries which are perfectly fine. The emergency room doctor at the time wrote in his notes, which always makes her concerned, "I made sure that I told the patient that she has an abnormality on the right side and the pain is on the left side," the caller doesn't know what that means. She confirms this was in Mar2021, she still has it now but it has gotten better. When confirming labs from above she mentioned that also, her neutrophils absolute are low. All of these labs are in red and she is nervous about that. She had her booster and her flu shot on 28Sep2021 but these labs were noted in Oct2021. She will be having follow up labs in Apr2022, she hasn't had anything else done. Even her primary care provider doctor doesn't want to see her until May2022 and she is happy about that.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.