I have been suffering with a lot of bad pains and near thing Guillain-Barre syndrome I have that, those type of symptoms; I have been suffering with a lot of bad pains and near thing Guillain-Barre syndrome I have that, those type of symptoms; it took away my memory I can can't even talk anymore; I have lot of muscle spasms and pain in my groin and nerve pain going down my legs and my foot; I got tired all the time I can't make it through the day without going back to the bed; it took away my memory I can can't even talk anymore; I have lot of muscle spasms and pain in my groin and nerve pain going down my legs and my foot; I have lot of muscle spasms and pain in my groin and nerve pain going down my legs and my foot; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 75-year-old female patient received BNT162b2 (BNT162B2), on 11May2022 as dose number unknown (booster), single (Lot number: FM0173) at the age of 75 years for covid-19 immunisation. The patient had no relevant medical history. The patient's concomitant medications were not reported. Vaccination history included: Covid-19 vaccine (Primary Immunization series complete but unknown manufacturer), for COVID-19 immunization. The following information was reported: FATIGUE (non-serious) with onset 2022, outcome "not recovered", described as "I got tired all the time I can't make it through the day without going back to the bed"; GUILLAIN-BARRE SYNDROME (medically significant), PAIN (non-serious) all with onset 2022, outcome "not recovered" and all described as "I have been suffering with a lot of bad pains and near thing Guillain-Barre syndrome I have that, those type of symptoms"; MUSCLE SPASMS (non-serious), NEURALGIA (non-serious), GROIN PAIN (non-serious) all with onset 2022, outcome "not recovered" and all described as "I have lot of muscle spasms and pain in my groin and nerve pain going down my legs and my foot"; MEMORY IMPAIRMENT (non-serious) with onset 2022, outcome "not recovered", SPEECH DISORDER (non-serious) with onset 2022, outcome "unknown" and all described as "it took away my memory I can can't even talk anymore". The patient underwent the following laboratory tests and procedures: C-reactive protein: Unknown results, notes: Consumer Stated, "The Metabolic Panel PshP4. I had the urine test and the one for information I forget what it is called, C reactive Protein."(Not clarified hence not captured in tab); Magnetic resonance imaging: Unknown results, notes: Consumer Stated, "Well I was sent for Hip x-ray, back x-rays and foot X-rays, Foot MRI. I go to Physical Therapy and go to the chiropractor; Metabolic function test: Unknown results, notes: Consumer Stated, "The Metabolic Panel PshP4. I had the urine test and the one for information I forget what it is called, C reactive Protein."(Not clarified hence not captured in tab); Urine analysis: Unknown results, notes: Consumer Stated, "The Metabolic Panel PshP4. I had the urine test and the one for information I forget what it is called, C reactive Protein."(Not clarified hence not captured in tab); X-ray: Unknown results, notes: Consumer Stated, "Well I was sent for Hip x-ray, back x-rays and foot X-rays, Foot MRI. I go to Physical Therapy and go to the chiropractor; X-ray limb: Unknown results, notes: Consumer Stated, "Well I was sent for Hip x-ray, back x-rays and foot X-rays, Foot MRI. I go to Physical Therapy and go to the chiropractor; X-ray of pelvis and hip: Unknown results, notes: Consumer Stated, "Well I was sent for Hip x-ray, back x-rays and foot X-rays, Foot MRI. I go to Physical Therapy and go to the chiropractor. Therapeutic measures were taken as a result of muscle spasms, neuralgia, groin pain.  Clinical information: Concern: Consumer Stated, "I got the Pfizer booster (clarified as Pfizer Covid-19 vaccine) on 11May. Since then I had been suffering with a lot of bad pains and near thing Guillain-Barre syndrome patient have that, those type of symptoms. It seems like nothing i making it better.  I was going to, I have been to a lot of doctors and I have been to the, the other thing is it took away my memory I can can't even talk anymore. Consumer was going to the Physical therapist and the chiropractor as well because she have lot of muscle spasms and pain in my groin and nerve pain going down my legs and my foot. She got tired all the time she can't make it through the day without going back to the bed and I have memory. She thought she was reporting it." Lab Test: Consumer Stated, "The Metabolic Panel PshP4. I had the urine test and the one for information I forget what it is called, C reactive Protein. Treatment: Consumer Stated, "Well I was sent for Hip x-ray, back x-rays and foot X-rays, Foot MRI. I go to Physical Therapy and go to the chiropractor. "Consumer was informed about the role of Pfizer Drug Safety. Expiration date: Consumer Stated, "I don't know." Age: 75 years (Age adverse event started not clarified). Reassurance: Consumer Stated, "I would like to know that you got everything I said. My symptoms, I want to know that you recorded all my symptoms." Consumer further Stated, "I was wondering what is going to happen with that now." Consumer was informed that a safety report has been filed. Consumer Stated, "So what does Pfizer advise that I do because I can't stay this way." Consumer was informed about Pfizer Medical Information and the contact# was provided as (Telephone number withheld), Option 3, timings as 8am-9pm Monday to Friday.  Follow-up attempts are completed. No further information is expected.