diarrhea; she sounds like a frog and her voice goes up and down; it makes her feel like you have a bad cold; her head feels like its clogged up but there's no pain; When she swallows, it's sore and throat is uncomfortable; When she swallows, it's sore and throat is uncomfortable/ clarified it was not sore but when she swallowed it did not hurt but was like it just bothered her; stuffed up; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  An 83-year-old female patient received bnt162b2 omi xbb.1.5 (COMIRNATY (2023-2024 FORMULA)), on 24Oct2023 at 12:00 as dose 1, single (Batch/Lot number: unknown) at the age of 83 years, in left arm for covid-19 immunisation; influenza vaccine (INFLUENZA VACCINE), on 24Oct2023 at 12:00 as dose number unknown, single (Batch/Lot number: unknown), in left arm for immunisation. The patient's relevant medical history included: "had a very bad cold" (unspecified if ongoing), notes: twenty something years ago. There were no concomitant medications. Vaccination history included: Moderna covid-19 vaccine (Dose 1), for COVID-19 immunization; Moderna covid-19 vaccine (Dose 2), for COVID-19 immunization; Moderna covid-19 vaccine (Dose 3 (booster)), for COVID-19 immunization; Moderna covid-19 vaccine (Dose 4 (booster)), for COVID-19 immunization; Moderna covid-19 vaccine (Dose 5 (booster)), for COVID-19 immunization. The following information was reported: ODYNOPHAGIA (non-serious) with onset Oct2023, outcome "recovering", described as "When she swallows, it's sore and throat is uncomfortable"; OROPHARYNGEAL DISCOMFORT (non-serious) with onset Oct2023, outcome "recovering", described as "When she swallows, it's sore and throat is uncomfortable/ clarified it was not sore but when she swallowed it did not hurt but was like it just bothered her"; HEAD DISCOMFORT (non-serious) with onset Oct2023, outcome "unknown", described as "her head feels like its clogged up but there's no pain"; NASOPHARYNGITIS (non-serious) with onset Oct2023, outcome "unknown", described as "it makes her feel like you have a bad cold"; DYSPHONIA (non-serious) with onset Oct2023, outcome "recovering", described as "she sounds like a frog and her voice goes up and down"; NASAL CONGESTION (non-serious) with onset Oct2023, outcome "unknown", described as "stuffed up"; DIARRHOEA (non-serious) with onset 25Oct2023 at 07:00, outcome "recovered" (25Oct2023 at 22:00), described as "diarrhea". Therapeutic measures were not taken as a result of nasopharyngitis, head discomfort, odynophagia, oropharyngeal discomfort, nasal congestion, diarrhoea, dysphonia.  Additional information: patient said she got her Pfizer COVID Vaccine shot on Tuesday. Said it made her feel like have a bad cold; she's stuffed up; she's not had a cold in 23 years. Said her head felt like its clogged up but there's no pain. When she swallowed, it's sore and throat was uncomfortable. Asking if this was a side effect. She had had 5 COVID vaccines before, all were Moderna. This was her 6th COVID vaccine and now it's Pfizer. She asked the vaccination provider if it would matter, was told it wouldn't (regarding 6th shot being Pfizer). She also mentioned in the end that she took the flu shot at the same time she took the Pfizer COVID vaccine. Agent stated that patient just learned that apparently the patient took the Pfizer COVID Vaccine with the Flu Shot on last Tuesday. She also had diarrhea and the diarrhea began between her getting the Pfizer vaccine and the flu shot. Stated she sounded like a frog and her voice went up and down and when this started last night she was getting a sore throat and clarified it was not sore but when she swallowed it did not hurt but was like it just bothered her and when she swallowed it is better today and was almost gone. She could swallow water and not hardly feel it now so hopefully this will clear in a day or so. The diarrhea had stopped and caller clarified it actually started early Wednesday at 7:00 on 25Oct2023 and stopped about 10:00pm last night on 25Oct2023. She used to be 5 feet 1 inch in height and 190 or 185 pounds and it was somewhere in there. Because of her age and she always get a flu shot every year and had all the other COVID vaccine so thought she might as well get this one and she did not go out and the only people she saw were who delivered her food or if she had to go to the doctor's office. The Pfizer COVID vaccine and flu shot were administered just around 12:00pm on 24Oct2023. No treatment required for the reported event; her throat was not as bad as it was and she could swallow now and it hardly bothered her whereas before she would swallow and where it started in the esophagus it would go down and she barely felt it when she drank water so that part was getting better. She just wanted to call to see about this because she never had it before where everything was like this and she clarified to state twenty something years ago she had a very bad cold where everything plugged up on her but has not had a cold in 23 years.  The information on the batch/lot number for bnt162b2 omi xbb.1.5 has been requested and will be submitted if and when received.