I had stomach cramps for the first time in my life; mild nausea; the patient was too fatigued to work much; had some chills /rested at home for several days; Dose received: 3; The patient received BNT162B2 and the flu shot on the same day; The patient received BNT162B2 and the flu shot on the same day; My arm was sore, but not extremely so; slept about ten hours at night but needed sever all al naps (v. my regular 6-6. hrs); This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 62 year-old male patient received bnt162b2 (BNT162B2), administered in arm right, administration date 25Oct2021 14:00 (Lot number: FF2593) at the age of 62 years as dose 3 (booster), single for covid-19 immunisation; influenza vaccine (INFLUENZA VACCINE), administration date 25Oct2021 (Batch/Lot number: unknown). Relevant medical history included: "Obesity" (unspecified if ongoing), notes: weight (BMI 31 or 32); "Blood cholesterol abnormal" (unspecified if ongoing), notes: cholesterol; "Blood pressure abnormal" (unspecified if ongoing), notes: BP; "Mood disorder" (unspecified if ongoing), notes: Mood. The patient took concomitant medications. Past drug history included: Simvastatin, reaction(s): "Drug allergy", notes: Known allergies: Simvistatin. Vaccination history included: Bnt162b2 (DOSE 2, SINGLELot No: ER8730 Location of injection: Arm Right Vaccine Administration Time: 14:00 Route of administration: Unspecified.), administration date: 21Apr2021, when the patient was 61 years old, for COVID-19 immunisation; Bnt162b2 (DOSE 1, SINGLELot No: ER8734 Location of injection: Arm Right Route of administration: Unspecified.), administration date: 31Mar2021, when the patient was 61 years old, for COVID-19 immunisation. The following information was reported: IMMUNISATION (non-serious) with onset 25Oct2021 14:00, outcome "unknown", described as "Dose received: 3"; OFF LABEL USE (non-serious), PRODUCT USE ISSUE (non-serious) all with onset 25Oct2021, outcome "unknown" and all described as "The patient received BNT162B2 and the flu shot on the same day"; FATIGUE (non-serious) with onset 25Oct2021 21:00, outcome "recovering", described as "the patient was too fatigued to work much"; CHILLS (non-serious) with onset 25Oct2021 21:00, outcome "recovering", described as "had some chills /rested at home for several days"; ABDOMINAL PAIN UPPER (non-serious) with onset 26Oct2021, outcome "recovering", described as "I had stomach cramps for the first time in my life"; NAUSEA (non-serious) with onset 26Oct2021, outcome "recovering", described as "mild nausea"; PAIN IN EXTREMITY (non-serious) with onset Oct2021, outcome "recovering", described as "My arm was sore, but not extremely so"; HYPERSOMNIA (non-serious) with onset Oct2021, outcome "recovered", described as "slept about ten hours at night but needed sever all al naps (v. my regular 6-6. hrs)". The events "the patient was too fatigued to work much", "had some chills /rested at home for several days", "i had stomach cramps for the first time in my life", "mild nausea", "my arm was sore, but not extremely so" and "slept about ten hours at night but needed sever all al naps (v. my regular 6-6. hrs)" were evaluated at the physician office visit. The action taken for influenza vaccine was unknown. Therapeutic measures were not taken as a result of fatigue, chills, abdominal pain upper, nausea, pain in extremity, hypersomnia.  Additional Information: The patient did not receive any other vaccines within four weeks prior to COVID-19 vaccine. Prior to vaccination, the patient was not diagnosed with COVID-19. Since the vaccination, the patient had not been tested for COVID-19. The patient never had an experience like this. He was an attorney and had to work at home for several weeks, doing as much as he could, and just resuming a full-time schedule now, five weeks after the shot. He still had to take two or three rests a day. The fatigue was improving slowly. The events resulted in doctor or other healthcare professional office/clinic visit.  Follow-up attempts are completed. No further information is expected.