felt like she was going to pass out; when episode passed, her heart rate sped up; Felt tired; Loss of vision described as white streaks where she could not see to the side/ was losing her sight again; Low blood pressure; Felt faint; had loss of color in her face; Numbness in arms; numbness in hands; syncope/fainting; This is a spontaneous report from a contactable consumer (patient's mother). A 16-year-old female patient received the first dose of BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE) via an unspecified route of administration on 10Jul2021 (batch/lot number was not reported) at 16 years old, as DOSE1, SINGLE for COVID-19 immunization. The patient's medical history and concomitant medications were not reported.  The reporter called on behalf of her 16-year old daughter stating that her daughter received the first dose of the Pfizer Biontech COVID19 vaccine on 10Jul2021 and after the vaccine shot, her daughter had the first episode (syncope/fainting); then three (3) days after the shot (on 13Jul2021), and 10 days after the shot (on 20Jul2021). The mother mentioned that her daughter felt better 35 minutes afterward, but that was not normal for a 16-year-old kid after the shot. It was further reported that on 13Jul2021, the patient (daughter) experienced low blood pressure, felt faint, had loss of color in her face, had numbness in her arms, and had a loss of vision described as white streaks where she could not see to the side. The mother called the family doctor, and he said her daughter's effects were probably from the vaccine, and that she needs to rest, and continue to be monitored. On day 10 (20Jul2021), the patient was riding her bike and had another episode. Her daughter was losing her sight again, felt like she was going to pass out, had loss of color in her face, and numbness in her hands. When the episode passed, her heart rate sped up, and 35 minutes later, she felt like a normal child, but she just felt tired. The mother called the doctor again, and he told her that the next time the episode happens, she needs to take her daughter to the emergency room. Her daughter was scheduled for her second dose around 31Jul2021.The mother was finding information about these symptoms by calling the CDC and the Pfizer website, and could not find any information. She asked if Pfizer had received any calls about teenagers experiencing a drop in blood pressure, fainting, loss of vision, and numbness. She was scared because she saw studies of various conditions and she wanted to make sure that the second dose will not cause more effects. Her daughter will have more tests done, and the mother cannot point to the vaccine as the cause at this time. Investigation assessments were not provided. When referred to HCP, the reporter stated that she had already done that and that they were not going to do anything until she has another episode. The mother asked for information or reported data on teenagers experiencing drop in blood pressure, fainting, loss of vision, and numbness. She also asked for data on case studies on teenagers that had heart issues after the second dose that would have given a warning for what was going to happen or red flags on the kids who had the first dose and had heart issues on the second dose. She also stated that she knows 85% of the kids who experienced the side effect are okay, but she does not want her daughter to be included on the other percentage who were not okay. The mother expressed on not wanting the second dose of the vaccine. Her daughter will not get the 2nd vaccine because nobody was giving her the answers; she received the same information from the fact sheet that she had already read. The patient recovered from the event syncope/fainting. Outcome of the other events was unknown.  Information about the batch/lot number has been requested.