Weight fluctuates and she is about (not specified) pounds; Muscle aches it was in her shin; Tingling sensation; Have the headache everyday; Feeling in a fog/brain fog, not thinking straight; Muscle ache; Pain/tenderness in her left arm/shoulder; Slight dizziness; after she was injected she started feel the pain; Pain/tenderness in her left arm/shoulder; She could not sleep last night; She feels fever since her neck is warm.; stuttering; when she was talking to somebody and then all of a sudden her mind will be on a complete blank or lost of train of thoughts; Nausea that is persisting; Fatigue; when she was talking to somebody and then all of a sudden her mind will be on a complete blank or lost of train of thoughts; This is a spontaneous report from a contactable consumer (patient reported for self). A 49-years-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE, Solution for injection, Batch/Lot number was not reported, Expiration date: Unknown), dose 1 via an unspecified route of administration, administered in Arm Left (left upper arm, shoulder) on 10Aug2021 12:00 (at the age of 49-years-old) as dose 1, single for COVID-19 immunization (Reason for no lot number: of Pfizer Covid Vaccine: Complainant does not have the product with them at the time of call). Medical history included bursitis in right hip (diagnosed a long time ago. She had an injection for the bursitis maybe cortisone or prednisone a couple weeks prior to the vaccine), convulsions and seizures (when she was a kid she did have convulsions and seizures to two vaccines but does not know the names of the vaccines) from an unknown date and unknown if ongoing. The patient's concomitant medications were not reported. Patient history of all previous immunization with the Pfizer vaccine and any additional vaccines administered on same date of the Pfizer suspect was none reported. Patient prior vaccinations (within 4 weeks) were none reported. Prior vaccinations adverse events were none reported. Patient did not have family medical history relevant to adverse events. Patient received the first dose of the Pfizer Biontech COVID19 vaccine last Tuesday, 10Aug2021 and experienced a nausea that was persisting (Aug2021). Patient stated that it had been a week and she still had the headache every day (10Aug2021) and that she could not sleep last night (Aug2021). Patient mentioned that when she was talking to somebody and then all of a sudden her mind will be on a complete blank or lost of train of thoughts (Aug2021) then added that she was never like that. Patient said she cannot be having brain fogs since she works in the medical field and was taking care of patients. She was also a surgical technologist that prepares the sterile field and instrument and she also holds retractors. She does not know if it was from the lack of sleep or if it was from the vaccine. Patient also stated that she was not sure if she can get the second dose of the vaccine. Patient said that she does not have fever and her temperature was normal, but she feels fever since her neck was warm (Aug2021). Patient was concerned if the side effects that she had are normal and if how long would they last. Patient said she was not sure on whether to get the second dose of the vaccine because of the side effects she experienced. She also asked as for protection, if she was already protected from the first dose of the vaccine or if the first dose of the vaccine will already help in getting protection with the COVID virus. Stated she was aware of side effects and she was under the impression that they would go away within 24 to 48 hours. She has had a persistent headache every day and it was not going away. She was not sleeping. If she did sleep it was in little spurts, short spurts and then wakes back up, she was constantly fatigued. She sometimes feels she was thinking fine and then when she starts talking to people, she will lose her train thought and be in a fog (10Aug2021); Weight fluctuates and she is about (not specified) pounds (on unspecified date). She was asking if this was something that was normal or was it going to go away. She called her doctor his morning to see if she can get an evaluation and she was booked. She was concerned about the constant headache, fatigue (Aug2021), and not thinking correctly. She is fine one minute and able to talk then will lost her train of thought. She received the vaccine at work. Her left arm/shoulder was still tender when she touches it, it was not unbearable, but it was fine. Within 15 minutes of receiving the covid vaccine she started feeling slight dizziness, tingling sensation (10Aug2021) which did not last long, about an hour and then went away. She started getting a headache the same day she got the vaccine. She could not think straight and kept getting her times and dates mixed up and this was not her. She was not sure when the not sleeping started, it may have been a couple days after the vaccine. When she says fog she means if she was not speaking she feels ok, other than headache and muscle aches (10Aug2021) but when she started to talk, she does not know if it was stuttering or losing her train of thought but it was persisting off and on and an everyday thing. Reported, Muscle aches it was in her shin, it felt like someone took a board and smacked her shins really hard. She did not feel the injection and then after she was injected, she started feel the pain (10Aug2021). She did not notice pain/tenderness in her left arm/shoulder (10Aug2021) unless she touches it with her finger. She also had nausea that started within past couple or three days and the nausea was about the same. Her vaccination card it at work. There was no treatment for the events. Patient had not visited emergency room and physician office. There was no investigation assessment. Patient relevant tests were none reported. The clinical outcome of events nausea that is persisting, have the headache every day, she could not sleep last night, fatigue, Feeling in a fog/brain fog, not thinking straight, not thinking straight was not recovered; outcome of events tingling sensation, slight dizziness was recovered on 10Aug2021; outcome of events muscle ache, Muscle aches it was in her shin recovered on an unspecified date in Aug2021; outcome of events pain/tenderness in her left arm/shoulder was recovering and all other events outcome was unknown.  The lot number for the vaccine, [BNT162B2], was not provided and will be requested during follow up.