pressure on chest, like someone was sitting on chest; soreness in arm; dyslexia; low blood sugar/ felt wave of hypoglycemia; dizziness/ lightheadedness; nausea; difficulty breathing; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP) from medical information team. The reporter is the patient.  A 69-year-old female patient received bnt162b2 omi xbb.1.5 (BNT162B2 OMI XBB.1.5), on 07Oct2023 as dose 1, single (Batch/Lot number: unknown) at the age of 69 years intramuscular for covid-19 immunisation. The patient's relevant medical history included: "Hypoglycemia" (unspecified if ongoing); "allergy to tetanus" (unspecified if ongoing); "bronchitis", start date: 2019 (unspecified if ongoing); "COVID-19", start date: 30Aug2023 (unspecified if ongoing). There were no concomitant medications. Past drug history included: Toradol, reaction(s): "allergic"; Toradol, reaction(s): "rash"; Toradol, reaction(s): "hives"; Toradol, reaction(s): "respiratory issues". Vaccination history included: Bnt162b2 (dose 1, Lot number: unknown), for COVID-19 immunization; Bnt162b2 (dose 2, Lot number: unknown), for COVID-19 immunization; Bnt162b2, bnt162b2 omi ba.4-5 (dose 3 (booster), Lot number: uknown), for COVID-19 immunization; Bnt162b2, bnt162b2 omi ba.4-5 (dose 4 (booster), Lot number: uknown), for COVID-19 immunization; Flublok, for immunisation. The following information was reported: DYSPNOEA (non-serious) with onset 07Oct2023, outcome "recovered" (07Oct2023), described as "difficulty breathing"; DIZZINESS (non-serious) with onset 07Oct2023, outcome "recovered" (07Oct2023), described as "dizziness/ lightheadedness"; DYSLEXIA (non-serious) with onset 07Oct2023, outcome "unknown"; HYPOGLYCAEMIA (non-serious) with onset 07Oct2023, outcome "unknown", described as "low blood sugar/ felt wave of hypoglycemia"; NAUSEA (non-serious) with onset 07Oct2023, outcome "recovered" (07Oct2023); CHEST DISCOMFORT (non-serious), outcome "unknown", described as "pressure on chest, like someone was sitting on chest"; PAIN IN EXTREMITY (non-serious), outcome "unknown", described as "soreness in arm". Additional information: Patient had first 2 doses and then a booster and maybe another booster; all doses were the Pfizer COVID vaccine. Patient reported that experienced low blood sugar, dizziness, nausea, and difficulty breathing during the 15-minute wait after receiving the vaccine. She also had pressure on chest, like someone was sitting on chest. She also had lightheadedness. She was thankful husband was driving, stating she would have had to take a break. Patient was fine except for the 15-minute waiting period at the vaccination facility, felt wave of hypoglycemia. Dizziness, nausea, and difficulty breathing lasted the 15-minute period and the drive home, probably 45 minutes to 1 hour that they lasted. She had hypoglycemia and could recognize those types of symptoms when come on. She was fine, just had soreness in arm, but vaccine was great. Patient also reported that she transposed in the afternoon, dyslexia happened in the afternoon.  The information on the batch/lot number for bnt162b2 omi xbb.1.5 has been requested and will be submitted if and when received.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202300329900 same reporter/drug, different patients/events;US-PFIZER INC-202300330784 same patient, different event/drug;