not being able to get out of bed w/o assistance; Dizziness; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 73-year-old patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 30Oct2022 as dose 4 (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history included: "Tubal ligation", start date: Oct1975, stop date: Oct1975; "Parotid gland cancer", start date: Feb1977, stop date: Feb1977, notes: Removal of top lobe left parotid gland ,skin partial nerve cheek; "Parotid gland cancer", start date: Feb1979, stop date: Feb1979, notes: Removal of lower parotid lobe, lower jaw nerve (2) e.skin; "Left knee replacement", start date: 2012, stop date: 2012, notes: Replace left knee; "Right Knee replacement", start date: 2015, stop date: 2015, notes: Replace Right knee; "Colonoscopy" (unspecified if ongoing), notes: Periodic every 5 year non event. There were no concomitant medications. Vaccination history included: BNT162b2 (DOSE 3 (BOOSTER), SINGLE, Date/ Time : 18Oct2021 -05: 00 PM, Anatomical site of injection: Right shoulder, Route of administration: Intramuscular, Batch/lot no: FH8027 Pfizer), administration date: 18Oct2021, for Covid-19 immunization, reaction(s): "Got my booster shot and got sick all over again/Could not get out of bed"; BNT162b2 (DOSE 3 (BOOSTER), SINGLE, Date/ Time : 18Oct2021 05: 00 PM, Anatomical site of injection: Right shoulder, Route of administration: Intramuscular, Batch/lot no: FH8027 Pfizer), administration date: 18Oct2021, for Covid-19 Immunization, reaction(s): "Dizzy", "Didn't know who was in the room"; BNT162b2 (DOSE 2, SINGLE, Date/ Time : 27Mar2021 12 Noon, Anatomical site of injection: Right shoulder, Route of administration: Intramuscular, Batch/lot no: EP7533 Pfizer), administration date: 27Mar2021, for Covid-19 Immunization, reaction(s): "got extremely sick after each of the original 2 shots/could not get out of bed"; BNT162b2 (DOSE 2, SINGLE, Date/ Time : 27Mar2021 12 Noon, Anatomical site of injection: Right shoulder, Route of administration: Intramuscular, Batch/lot no: EP7533 Pfizer), administration date: 27Mar2021, for Covid-19 immunization, reaction(s): "Dizzy", "didnt know who was in the room/ memory issue linger - not as severe", "Runny nose", "less vertigo - not as much swaying -manageable", "Aches in all joints", "Lack of energy, strength", "Lack of energy, strength", "Apathetic"; BNT162b2 (DOSE 1, SINGLE, Date/ Time : 06Mar2021 11: 00 AM, Anatomical site of injection: Right shoulder, Route of administration: Intramuscular, Batch/lot no: EN6199 Pfizer), administration date: 06Mar2021, for Covid-19 immunization, reaction(s): "got extremely sick after each of the original 2 shots/could not get out of bed", "dizzy", "didnt know who was in the room/ memory issue linger - not as severe", "Runny nose", "less vertigo - not as much swaying -manageable", "Aches in all joints", "Lack of energy, strength", "Lack of energy, strength", "Apathetic". The following information was reported: DIZZINESS (non-serious) with onset 30Oct2022, outcome "recovered"; BEDRIDDEN (non-serious) with onset 30Oct2022, outcome "recovered", described as "not being able to get out of bed w/o assistance". Therapeutic measures were not taken as a result of bedridden, dizziness.  Additional information: Prior Vaccinations (within 4 Week): None. Concomitant Drugs: None. Relevant test: None. Specific relevant test: None. Persistent runny nose, Vertigo, memory issues did not no who was in my room, or conversation. Persistent runny nose, Less Vertigo- Not as much swine manageable new issue linger not as severe.  The information on the batch/lot number for BNT162b2, BNT162b2 omi ba.4-5 has been requested and will be submitted if and when received.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202201283469 Same patient, different vaccine dose number and different event.;US-PFIZER INC-202201283470 Same patient/drug, different dose/events;