Immunisation; I had a severely sore and stiff back of neck; I had a severely sore and stiff back of neck; difficult to turn my head; I had extreme chills; alternating with sweats; Severe body aches; increased sensitivity to any form of touch; my feet were about 75% numb for several hours; Minor nausea; Severe fatigue; This is a spontaneous report received from a contactable reporter(s) (Other HCP). The reporter is the patient.  A 46 year-old female patient (not pregnant) received bnt162b2 (BNT162B2), administered in arm left, administration date 23Oct2021 15:00 (Lot number: FE3590) at the age of 46 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Multiple sclerosis" (unspecified if ongoing). Concomitant medication(s) included: CELEBREX; LUNESTA. Past drug history included: Zithromax, reaction(s): "Known allergies: Zithromax". Vaccination history included: Bnt162b2 (Prev dose product= COVID 19, Prev dose brand= Pfizer, Prev dose brand unknown= False, Prev dose lot number= EJ1685, Prev dose lot unknown= False, Prev dose administration date= 29Dec2020, Prev dose dose number= 1), administration date: 29Dec2020, when the patient was 45 years old, for Covid-19 immunization; Bnt162b2 (Prev dose product= COVID 19, prev dose brand= Pfizer, prev dose brand unknown= False, prev dose lot unknown= True, prev dose lot unknown reason= Unable to locate or read the details, prev dose administration date= 21Jan2021, prev dose dose number= 2), administration date: 21Jan2021, when the patient was 45 years old, for Covid-19 immunization. The following information was reported: IMMUNISATION (non-serious), outcome "unknown", described as "Immunisation"; NECK PAIN (non-serious), MUSCULOSKELETAL STIFFNESS (non-serious) all with onset 23Oct2021 18:00, outcome "recovered with sequelae" and all described as "I had a severely sore and stiff back of neck"; MOVEMENT DISORDER (non-serious) with onset 23Oct2021 18:00, outcome "recovered with sequelae", described as "difficult to turn my head"; CHILLS (non-serious) with onset 23Oct2021 18:00, outcome "recovered with sequelae", described as "I had extreme chills"; HYPERHIDROSIS (non-serious) with onset 23Oct2021 18:00, outcome "recovered with sequelae", described as "alternating with sweats"; PAIN (non-serious) with onset 23Oct2021 18:00, outcome "recovered with sequelae", described as "Severe body aches"; HYPERAESTHESIA (non-serious) with onset 23Oct2021 18:00, outcome "recovered with sequelae", described as "increased sensitivity to any form of touch"; HYPOAESTHESIA (non-serious) with onset 23Oct2021 18:00, outcome "recovered with sequelae", described as "my feet were about 75% numb for several hours"; NAUSEA (non-serious) with onset 23Oct2021 18:00, outcome "recovered with sequelae", described as "Minor nausea"; FATIGUE (non-serious) with onset 23Oct2021 18:00, outcome "recovered with sequelae", described as "Severe fatigue". Therapeutic measures were not taken as a result of immunisation, neck pain, musculoskeletal stiffness, movement disorder, chills, hyperhidrosis, pain, hyperaesthesia, hypoaesthesia, nausea, fatigue.Clinical course of the events includes Approximately 3 hrs after injection I had a severely sore and stiff back of neck, difficult to turn my head. 6-8 hrs later I had extreme chills, alternating with sweats - which lasted over 24 hrs. Severe body aches with increased sensitivity to any form of touch 15-25 hrs post shot. At about 28 hours, my feet were about 75% numb for several hours. Minor nausea. Severe fatigue.  Additional information: Additional information: Prior to vaccination, the patient was not diagnosed with COVID-19. and post vaccination, the patient has not been tested for COVID-19. No other vaccines within four weeks of administration.Clinical course of the events includes, Approximately 3 hours after injection I had a severely sore and stiff back of neck, difficult to turn my head. 6-8 hours later I had extreme chills, alternating with sweats - which lasted over 24 hrs. Severe body aches with increased sensitivity to any form of touch 15-25 hours post shot. At about 28 hours, my feet were about 75% numb for several hours. Minor nausea. Severe fatigue.  Follow-up attempts are completed. No further information is expected.