Caller stated the facility did not update the card she was going through paperwork nothing in there says she had the second dose.; very mild dizziness; Weakness; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) for a Pfizer sponsored program (159558). The reporter is the patient.  A 74 year-old female patient received bnt162b2 (BNT162B2), administered in deltoid right, administration date 06Mar2021 15:00 (Lot number: EL8982) at the age of 74 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "Blood pressure" (unspecified if ongoing). Concomitant medication(s) included: LOSARTAN taken for blood pressure measurement; HYDROCHLOROTHIAZIDE taken for blood pressure measurement. Vaccination history included: Bnt162b2 (Vaccine Name: COVID 19 Vaccine, Lot Number: EL8982 , Expiry Date: Unknown, Route: Injection, Anatomical Location: Upper right arm, No. of Previous Doses: 0, Date: 13Feb2021), administration date: 13Feb2021, when the patient was 74 years old, for Covid-19 Immunisation. The following information was reported: CIRCUMSTANCE OR INFORMATION CAPABLE OF LEADING TO MEDICATION ERROR (non-serious), outcome "unknown", described as "Caller stated the facility did not update the card she was going through paperwork nothing in there says she had the second dose."; DIZZINESS (non-serious), outcome "unknown", described as "very mild dizziness"; ASTHENIA (non-serious), outcome "unknown", described as "Weakness". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were not taken as a result of dizziness. Additional information: Injection was done in the muscle thinks in the deltoid part of right arm. Losartan has been taken for several years. Patient stated her doctor recently cut hydrochlorothiazide down to five days a week instead of 7 days. She has been taking it 7 days a week since the dizziness started. Been taking for about a year. Patient stated she got the second dose of the COVID 19 vaccine on 06Mar2021 and tomorrow has been two weeks since the second dose and she has been experiencing, only after second dose, not the first, very mild dizziness. She did not know if this was a severe reaction as the dizziness and weakness was very mild as it comes and goes. She was not too concerned about it but she was going to have an outpatient procedure done on 23Mar2021 with general anesthesia and was wondering if it was okay to proceed with procedure because of the dizziness she was experiencing. She was 5 foot 5 1/2 inches. She was on a diet. She was unsure of her doctor's specialty but clarified it was her primary care doctor. After her first shot she received a text message everyday to see how she was doing but she only received one text message after the second shot and she did respond and mentioned the dizziness. She became aware of it seems like maybe not sure since second dose, been two weeks not sure if it happened immediately or several days after. It was still ongoing and persisting basically the same it was intermittent throughout the day, very slight. There was not treatment. Patient declined to share all of her medications because it is lengthy. She stated the only medications she felt could be related was her two blood pressure medications. The blood pressure was the only thing she can think of that is related to the dizziness. She was looking at the card they gave her back for the first dose in 13Feb2021 and it was presented when she got the second dose but they never updated it. She was actually told she would need a COVID test done before her procedure and that since she had her the second dose of the COVID vaccine she would just need to show proof. She had no proof she had the second dose. The facility did not update the card she was going through paperwork nothing in there says she had the second dose. She updated the card herself for the date of second dose but it was on the same card. Her husband actually went with her to get his second dose and they did not update his card either. She did not think about that she did not have proof of second dose.  She wanted to wait the full two weeks for the dizziness which will be up tomorrow since receiving her second dose but since she was having her procedure she thought it was better to check in. She has been monitoring her blood pressure and it has been typical. She received second dose on 06Mar2021 and has been experiencing mild dizziness. It comes and goes. She was having a procedure done on Tuesday with general anesthesia. She wanted to follow up.   No follow-up attempts are possible. No further information is expected.