passed out; lost her ability to see; Disoriented; she was hot/felt hot; head hurt; didn't want to eat any/hasn't had an appetite, didn't want to eat; feeling nauseous/stomach feels queasy; Feels sick to stomach; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the parent.  A 8 year-old female patient received bnt162b2 (PFIZER-BIONTECH COVID-19 VACCINE), administered in arm left, administration date 07Dec2021 17:30 (Lot number: FL0007) at the age of 8 years as dose 2, single for covid-19 immunisation. Relevant medical history included: "ADHD" (unspecified if ongoing), notes: The patient used to take ADHD medicine, but she hasn't taken that in about 8 months. The patient was on it for her ability to focus more but this was stopped in April of this year. The doctor told the caller to just monitor her. Her daughter has been able to stay focused without it.; "cold" (unspecified if ongoing); "cough" (unspecified if ongoing); "sore throat" (unspecified if ongoing); "sneezing" (unspecified if ongoing). The patient did have a cold so about a week ago, the caller gave her some cough medicine. The patient complained of a sore throat and was sneezing so the caller gave her daughter some over-the-counter holistic cough medicine. However, the last time she had any of that was a week ago.  Concomitant medication(s) included: PROBIOTIC GUMMIES. Vaccination history included: Bnt162b2 (Dose:1, Lot Number: FK5127, Route, Anatomical Location: Left arm), administration date: 15Nov2021, when the patient was 8 years old, for Covid-19 Immunization, reaction(s): "no issues with the first shot"; Flu shot, administration date: Sep2021. The patient got the flu shot. Caller clarified as the one they stick up the nose for kids because her daughter doesn't like shots. However, this was in Sep2021 before school started and the first shot of her COVID vaccine was not until Nov. This morning, the caller (parent) went and got her daughter (patient) up for school and her daughter lost her ability to see for about 2 minutes. The patient started screaming that she couldn't see and that her eyes went black. The patient was disoriented and screaming. She passed out for about 10 seconds. The caller states her daughter went limp on her and then her daughter came to and said she was hot. Her daughter had a dress on and said she needed to take the dress off and that she was so hot. Her daughter was telling her that she was hot and that she couldn't see. The caller thought maybe her daughter had something in her eye or something. So, she sat her daughter in her lap and her daughter passed completely out. It was after about 10 seconds, the caller didn't know whether she should call the paramedics or what. Her daughter came to and told the caller that she needed to lay down right there. They were on her daughter's bed so the caller laid her daughter face down on the bed. After rubbing her back and making sure her daughter was breathing okay for a few minutes, her daughter then reported her head hurts but her eyes were not black anymore. Then, a few minutes later, she said her eyes went black again.  The caller sat with her daughter and then her daughter came to herself again. After about 15-20 minutes of watching her daughter, the caller told her daughter to take her clothes off and put her PJs on and rest in the bed. The caller called her daughter's doctor. Just about 30 minutes before she called Pfizer, the doctor's nurse called her back and said the doctor said this was one of the rare side effects of the second shot. If it happened again, to take to the  Hospital. Right now, her daughter is fine. Her daughter did not have a fever, she did check that. The patient woke up fine this morning. She had no issues at all and then all of a sudden, the patient was saying her eyes were going black, that she was hot, she took off her dress and said she couldn't see. She kind of passed out. Caller states she got her daughter up right at 6:01 and her daughter started having these issues about 6:20AM. Her daughter had some French toast sticks (like the frozen kind) for breakfast. Her daughter didn't want to eat any. She had four sticks, but ate two and didn't eat the rest of them. As the caller was combing her daughter's hair is when it all just happened instantly. Her daughter went from happy, jolly, ready to go to school and then things went quick. Her daughter reports she is feeling nauseous. Every time she checks on her, her daughter says she feels sick to stomach. Her daughter has eaten a banana and popsicle. She hasn't had an appetite. Her daughter reports her stomach feels queasy, so she is eating light. The outcome of event passed out, lost her ability to see, Disoriented, felt hot, head hurt was recovered on 08Dec2021, and others was unknown.