Expiration: Consumer stated, "It was 02Feb2021."; brain zaps; brain fog; there was a doctor that gave me some medication for vertigo which seems like it made it worse; I have ringing in my ears now; brain dash / headache; light headedness; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 59 year-old female patient received bnt162b2 (BNT162B2), administered in arm left, administration date 20Feb2021 (Lot number: EN6202, Expiration Date: 02Feb2021) at the age of 58 years as dose 1, single for covid-19 immunisation. The patient had no relevant medical history. The patient's concomitant medications were not reported. The following information was reported: EXPIRED PRODUCT ADMINISTERED (non-serious) with onset 20Feb2021, outcome "unknown", described as "Expiration: Consumer stated, "It was 02Feb2021.""; ELECTRIC SHOCK SENSATION (non-serious) with onset 2021, outcome "unknown", described as "brain zaps"; FEELING ABNORMAL (non-serious) with onset 2021, outcome "unknown", described as "brain fog"; VERTIGO (non-serious) with onset 2021, outcome "not recovered", described as "there was a doctor that gave me some medication for vertigo which seems like it made it worse"; TINNITUS (non-serious) with onset 2021, outcome "unknown", described as "I have ringing in my ears now"; HEADACHE (non-serious) with onset 2021, outcome "unknown", described as "brain dash / headache"; DIZZINESS (non-serious) with onset 2021, outcome "unknown", described as "light headedness". The patient underwent the following laboratory tests and procedures: blood cholesterol: unknown results; investigation: unknown results. Therapeutic measures were taken as a result of vertigo.  Additional Information: On the first shot, she had side effects for a long period of time which have gotten better but afraid to take a full dose of the vaccine as a booster. She experienced "brain zaps" and on some days "brain fog" exactly two weeks after the first dose. She has heard that vaccines given in a vein could be why so many people are having side effects. She  "small person who hasn't done well on medications in the past." "I know of other people in the same situation that I had. Why can't we choose a lower dose" "If its the same, made up with the same chemicals, I would have some type of protection. Updated Information: RMH added, Lab data added, New event added. Dates for develop side effects; Brain zap; brain fog on some days and it continued to occur; brain fog: (From: Unspecified To: Unspecified) Reporter seriousness for develop side effects; Brain zap; brain fog on some days and it continued to occur; brain fog: Unspecified. Dates for Vertigo; seems like it made it worse; stopped: (From: Unspecified To: Unspecified) Reporter seriousness for Vertigo; seems like it made it worse; stopped: Unspecified Dates for they actually accidently give a vein when they are vaccinating you that can cause side effects: (From: Unspecified To: Unspecified) Reporter seriousness for they actually accidently give a vein when they are vaccinating you that  cause side effects: Unspecified. Dates for Dizziness: (From: Unspecified To: Unspecified) Reporter seriousness for Dizziness: Unspecified. Dates for have ringing in my ears: (From: Unspecified To: Unspecified) Reporter seriousness for have ringing in my ears: Unspecified. Dates for getting brain dash; not going away; bad at night: (From: Unspecified To: Unspecified) Reporter seriousness for getting brain dash; not going away; bad at night: Unspecified. Dates for brain dash which not going away; which really bad at night: (From: Unspecified To: Unspecified). Reporter seriousness for brain dash which  not going away; which really bad at night: Unspecified. Dates for Headache: (From: Unspecified To: Unspecified) Reporter seriousness for Headache: Unspecified. Dates for lot of pain on my second vaccine like throughout my leg that was like a shooting pain: (From: Unspecified To: Unspecified). Reporter seriousness for lot of pain on my second vaccine like throughout my leg that was like a shooting pain: Unspecified. Dates for brain and light headedness has not gone away: (From: Unspecified To: Unspecified). Reporter seriousness for brain and light headedness has not gone away: Unspecified Transferring agent stated, "She received both doses of Pfizer BioNtech Covid19 Vaccine (Suspect captured) the first primary series. The first dose was given on the 20Feb2021. The LOT number was EN6202. Dose 2 was given on 18Mar2021, lot number was EN6207. She said that after exactly 2 weeks after she got the first dose she develop side effects like she called them Brain zap and having brain fog on somedays and it continues to occur. So the reason for her call to ask his if she could get a half of her dose or a dose of a Pediatric vaccine as a booster to lessen the chance or her having additional side effects. So she said she is rather a small person that does not do well on medication historically (Further clarification unknown hence suspect not made) . She said she heard that doses being administered into a vein could be so many people are having side effects (Further clarification unknown hence split case was not made) and that's the main complaint that she has so she thought, she need to get over to Report her side effects from her first and second doses. Did you need some other information from me. Consumer was informed about the role of Pfizer drug safety. Date of Birth: Consumer stated, "Yeah, my first one was which is when she had her side effects exactly two weeks after the vaccine (Not clarified)." Age: Consumer stated, "You want to know my age now or when started 59 (Further clarification unknown hence not captured)." Height and Weight: Consumer stated, "it's like 5.2 she was not sure she was about 108 pounds, she thought." Expiration: Consumer stated, "It was 02Feb2021." Lab test: Consumer stated, "Actually, Yes she did have some lab test done recently. she know, just all kind of basics lab tests you know Cholesterol (Further not clarified) yeah, she don't have it all. she was not sure (Further not clarified)." Treatment: Consumer stated, "Yeah, there was a doctor that gave me some medication for vertigo which seems like it made it worse (Hence, PC filed). So, she stopped that." Name of Medication: Meclizine." Expiration date: Consumer stated, "Yeah, there is an expiration she think, 30Nov2022. I don't think that's the Expiration where that be it its 30Nov. Yeah, 30Nov2022(Further clarification unknown hence not captured)."Date of 1st and 2nd Vaccination: Consumer stated, "The second vaccination was on 18Mar2021 (Not clarified)." Date of 1st vaccination: Consumer stated, "24Feb2021. the first one was on Feb2021 that would be 24Feb2021, 24Feb2021 (Not clarified)."Anatomical Site: Consumer stated, "It was on the Left arm, both times." Consumer stated, "Actually after the 1st vaccine, no she 'had been those she was confuse if it was first or second' but she have experienced Dizziness, Brain fog, 'Kenites' she have ringing in my ears now. She was getting brain dash which was, just are not going away which is really bad at night. She have also have headache but the headache also the due to you know everything. But did get like a lot of pain on my second vaccine like throughout my leg that was like a shooting pain that was probably just couple of night, couple of days that not went away but the brain and light headedness has not gone away."Reassurance: Consumer stated, "No she think that will do, she probably just should, ya should take half of because she don't like not being protected. Because now I don't feel as healthy as she used to because of this side effects unfortunately. It's good that they know the side effects."Description of Product Complaint: Transferring agent stated, "She received both doses of Pfizer BioNtech Covid19 Vaccine (Suspect captured) the first primary series. The first dose was given on the 20Feb2021. The LOT number was EN6202. Dose 2 was given on 18Mar2021, lot number was EN6207. She said that after exactly 2 weeks after she got the first dose she develop side effects like she called them Brain zap and having brain fog on some days and it continues to occur. So the reason for her call to ask his if she could get a half of her dose or a dose of a Paediatric vaccine as a booster to lessen the chance or her having additional side effects. So she said she is rather a small person that does not do well on medication historically (Further clarification unknown hence suspect not made) . She said she heard that doses being administered into a vein could be so many people are having side effects (Further clarification unknown hence split case was not made) and that's the main complaint that she has so I thought, she need to get over to Report her side effects from her first and second doses. Did you need some other information from me." Treatment: Consumer stated, "Yeah, there was a doctor that gave me some medication for vertigo which seems like it made it worse (Hence, PC filed). So, she stopped that." Name of Medication: Meclizine Expiration date: Consumer stated, "Yeah, there is an expiration I think, 30Nov2022. I don't think that's the Expiration where that be it its Nov30.Yeah, 30Nov2022(Further clarification unknown hence not captured)."  No follow-up attempts are possible. No further information is expected.