Dose 1 to Dose 4 Moderna and Dose 5 Pfizer; Palate blistered; upper gums around front teeth swelled; fever; stomach upset; nerve pain; facial pain (nerve pain); headache; body ache; fatigue; burning tongue; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 53-year-old female patient (not pregnant) received BNT162b2, BNT162b2 omi ba.4-5 (BNT162B2, BNT162B2 OMI BA.4-5), on 04Feb2023 at 13:00 as dose 5 (booster), single (Lot number: GL0447) at the age of 53 years, in left arm for covid-19 immunisation; influenza vaccine (INFLUENZA), on 04Feb2023 as dose 1, single (Batch/Lot number: unknown), in right arm. The patient's relevant medical history included: "IC" (unspecified if ongoing); "fibromyalgia" (unspecified if ongoing); "Early Sjogren's Syndrome" (unspecified if ongoing); "IBS-d" (unspecified if ongoing); "If covid prior vaccination: Yes" (unspecified if ongoing). Concomitant medication(s) included: LYRICA; TOPIRAMATE. Vaccination history included: moderna (Dose Number: 4, Batch/Lot No: 027G21A, Location of injection: Arm Left, Vaccine Administration Time: 05:00 PM), administration date: 05Mar2022, when the patient was 53-year-old, for COVID-19 immunization; Moderna covid-19 vaccine (DOSE: 3, Other Vaccine same date lot number: 088D21A,, Location of injection: Arm Left), for COVID-19 immunization; Moderna covid-19 vaccine (DOSE: 2, Other Vaccine same date lot number: 013M20A,, Location of injection: Arm Left), for COVID-19 immunization; Moderna covid-19 vaccine (DOSE: 1, Other Vaccine same date lot number: 041G20A,, Location of injection: Arm Left), for COVID-19 immunization. The following information was reported: ORAL MUCOSAL BLISTERING (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering", described as "Palate blistered"; PAIN (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering", described as "body ache"; TONGUE DISCOMFORT (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering", described as "burning tongue"; FACIAL PAIN (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering", described as "facial pain (nerve pain)"; FATIGUE (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering"; PYREXIA (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering", described as "fever"; HEADACHE (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering"; NEURALGIA (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering", described as "nerve pain"; ABDOMINAL DISCOMFORT (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering", described as "stomach upset"; GINGIVAL SWELLING (non-serious) with onset 05Feb2023 at 08:30, outcome "recovering", described as "upper gums around front teeth swelled"; INTERCHANGE OF VACCINE PRODUCTS (non-serious), outcome "unknown", described as "Dose 1 to Dose 4 Moderna and Dose 5 Pfizer". The events "dose 1 to dose 4 moderna and dose 5 pfizer", "palate blistered", "upper gums around front teeth swelled", "fever", "stomach upset", "nerve pain", "facial pain (nerve pain)", "headache", "body ache", "fatigue" and "burning tongue" required physician office visit. Therapeutic measures were taken as a result of oral mucosal blistering, gingival swelling, pyrexia, abdominal discomfort, neuralgia, facial pain, headache, pain, fatigue, tongue discomfort.  Clinical course: Palate blistered and upper gums around front teeth swelled. Fever, stomachs upset, severe left sided facial pain (nerve pain), headache, body ache, fatigue prior to mouth blisters on palate at 48 hrs post vaccination. Burning tongue started at 24 hrs post vaccination. Doctor prescribed Benadryl over the phone. She had COVID prior vaccination. No COVID tested post vaccination.