Numbness in hands and feet; Numbness in hands and feet; But then returned suddenly as numbness in arms and torso; Felt weak and shaky; Felt weak and shaky; Symptoms are intermittent, but she has persistent tingling in feet/numbness/tingling in arms and feet; This is a spontaneous report received from contactable reporter(s) (Physician) from medical information team. The reporter is the patient.  An adult female patient (unknown if pregnant) received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), in Oct2022 as dose 3 (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 (Dose Number: 2, Batch/Lot No: Unknown. Not available/provided to reporter at the time of report completion), for COVID-19 immunization; Covid-19 vaccine (Dose Number: 1, Batch/Lot No: Unknown. Not available/provided to reporter at the time of report completion), for COVID-19 immunization. The following information was reported: HYPOAESTHESIA (non-serious) with onset Oct2022, outcome "not recovered", described as "But then returned suddenly as numbness in arms and torso"; ASTHENIA (non-serious), NERVOUSNESS (non-serious) all with onset Oct2022, outcome "not recovered" and all described as "Felt weak and shaky"; PARAESTHESIA (non-serious) with onset Oct2022, outcome "not recovered", described as "Symptoms are intermittent, but she has persistent tingling in feet/numbness/tingling in arms and feet"; HYPOAESTHESIA (non-serious), HYPOAESTHESIA (non-serious) all with onset 19Oct2022 at 08:00, outcome "not recovered" and all described as "Numbness in hands and feet". The events "numbness in hands and feet", "but then returned suddenly as numbness in arms and torso", "felt weak and shaky" and "symptoms are intermittent, but she has persistent tingling in feet/numbness/tingling in arms and feet" required physician office visit and emergency room visit. Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of hypoaesthesia, hypoaesthesia, hypoaesthesia, asthenia, nervousness, paraesthesia.  Additional information: Did the patient receive any other vaccines within 4 weeks prior to the COVID vaccine: Unknown. Adverse event: Reported received booster last week and within72 hours experienced numbness in hands and feet, became concerned, went to ER and got an LP and MRI which showed nothing, but patient continued to experience symptoms, slowly resolved over a couple of days, but then returned suddenly as numbness in arms and torso and felt weak and shaky. Went back to ER and got another LP which was clear. Was seen by Neurology and exam didn't reveal anything out of the ordinary. Symptoms are intermittent, but she has persistent tingling in feet. Adverse event start date: 19Oct2022, Adverse event start time: 08:00 AM, AE resulted in: Doctor or other healthcare professional office/clinic visit, Emergency room/department or urgent care If patient recovered: Not recovered. If treatment AE: No. Prior to vaccination, was the patient diagnosed with COVID-19: Unknown. Since the vaccination, has the patient been tested for COVID-19: Unknown.  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.