Could not get up and states all the energy went out of her body; She could not get up; Could not walk; Collapsed; Frustrated; I am getting irritated; Hearing impairment/ I have hearing problem; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team, Program ID. The reporter is the patient.  A female patient received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), in Oct2022 as dose number unknown (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Covid-19 vaccine (Primary immunization series completed, unknown manufacturer), for COVID-19 immunization; Covid-19 vaccine (she got all the primary series, booster shots,), for COVID-19 immunization. The following information was reported: ASTHENIA (hospitalization), outcome "not recovered", described as "Could not get up and states all the energy went out of her body"; MOVEMENT DISORDER (hospitalization), outcome "recovered", described as "She could not get up"; GAIT DISTURBANCE (hospitalization), outcome "recovered", described as "Could not walk"; LOSS OF CONSCIOUSNESS (hospitalization, medically significant), outcome "unknown", described as "Collapsed"; FRUSTRATION TOLERANCE DECREASED (non-serious), outcome "unknown", described as "Frustrated"; IRRITABILITY (non-serious), outcome "unknown", described as "I am getting irritated"; HYPOACUSIS (non-serious), outcome "unknown", described as "Hearing impairment/ I have hearing problem". The patient was hospitalized for asthenia, movement disorder, gait disturbance, loss of consciousness (hospitalization duration: 8 day(s)).  Clinical course:She had the Pfizer COVID-19 bivalent booster dose, 24 hours later she woke flat on her back on the floor and had been there 2 and a half to 3 days. She could not get up and states all the energy went out of her body. She was hospitalized for 8 days and then transferred to a rehab for 3 days before she checked herself out. She could not walk during the time. She states she can walk now but that she still does not have her energy back. Consumer stated, "Hello! she had a hearing impairment (Captured as event conservatively), you have an accent, she cannot understand you sorry. She can hear you. She cannot understand you because of my hearing problem and your accent. No, she want somebody who speaks without an accent." When asked if wanted to speak to someone in country: Consumer stated, "She want to speak to someone, She do not know what you said and she was getting irritated, she would like to speak to somebody without an accent. You have an accent, she had a hearing problem we two do not fit. If there is someone there without an accent? Somebody in country, yes." When told call could not be transferred to Pfizer Drug Safety: Consumer stated, "So, then this conversation is over. She cannot understand you, so she was gonna (incomplete sentence). she was going. In addition to your accent this is a terrible connection, you keep cutting in and out. Ok, this is my last (incomplete sentence). Well, you kind of told us all you want but it does not help me here. So, she was going to hang up before she get even more frustrated. Okay? Thank you have a great evening."A patient is calling for additional medical information on the side effects of the Pfizer COVID-19 Vaccine and Booster. She mentioned that she got all the primary series, booster shots, and the bivalent vaccine last Oct. She added that 24 hrs after she got the bivalent she collapsed and was on the floor for 3 days before being hospitalized. She is trying to find out if that is one of the weird side effects of the latest vaccination or the booster. - Submitted a manual AE form because she mentioned she collapsed 24 hrs after getting the bivalent vaccine/booster. That is all the information she provided.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.