I had the Flu vaccine probably about a month earlier; I had all flu like symptoms, very much flu like symptoms throughout my body; I was freaked out a lot for 3 days and it was bad/the day one and one and a half were absolutely awful; I was not good at all for like 2 days or so, 2 or 3 days; I had a fever around 101, 102; Muscle ache; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 40 year-old male patient received bnt162b2 (BNT162B2), administered in deltoid right (Batch/Lot number: unknown) as dose 3 (booster), single for covid-19 immunisation; influenza vaccine (FLU VACCINE VII) (Batch/Lot number: unknown) as dose number unknown, single for immunisation. Relevant medical history included: "Asthma" (unspecified if ongoing), notes: Verbatim: Asthma; "Bipolar disorder" (unspecified if ongoing), notes: Verbatim: Bipolar disorder; "Obesity" (unspecified if ongoing), notes: Verbatim: Obesity; "Respiratory inhaler" (unspecified if ongoing); "COVID-19" (unspecified if ongoing), notes: I am immunocompromised because I am on lot of medication and high risk; "immunocompromised" (unspecified if ongoing). Concomitant medication(s) included: SINGULAIR; ADVAIR; ABILIFY; PRISTIQ; LEUCOVORIN CALCIUM; VALIUM; AMBIEN; ZAPONEX taken for respiratory disorder; ADDERALL. Vaccination history included: Bnt162b2 (DOSE: 1), for Covid-19 Immunization; Bnt162b2 (DOSE: 2), for COVID-19 immunization.  The following information was reported: CIRCUMSTANCE OR INFORMATION CAPABLE OF LEADING TO MEDICATION ERROR (non-serious), outcome "unknown", described as "I had the Flu vaccine probably about a month earlier"; INFLUENZA LIKE ILLNESS (non-serious), outcome "recovered", described as "I had all flu like symptoms, very much flu like symptoms throughout my body"; FEELING ABNORMAL (non-serious), outcome "unknown", described as "I was freaked out a lot for 3 days and it was bad/the day one and one and a half were absolutely awful"; ILLNESS (non-serious), outcome "unknown", described as "I was not good at all for like 2 days or so, 2 or 3 days"; PYREXIA (non-serious), outcome "unknown", described as "I had a fever around 101, 102"; MYALGIA (non-serious), outcome "unknown", described as "Muscle ache". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of influenza like illness, feeling abnormal, illness, pyrexia, myalgia.  Additional information: This was the First case out of the 2 cases. Consumer stated, "He was not sure if he was actually at the right place. He was calling to report an adverse event following a booster vaccine. Would that be able to work for you or should he go to another website?" He was a one of the 'outlier' of groups you could say, and that he was affected with COVID prior to the vaccine being on the market. So that made him sort of a 'quarter' case here. He received Pfizer vaccine across this spectrum. The first dose was, the day one and one and a half were absolutely awful. That was not really what's important. He was calling for his really adverse reaction that occurred following the booster shot, last Monday earlier and he received, basically he had a fever around 101, 102. He had all flu like symptoms, very much flu like symptoms throughout his body, muscle ache, really just felt like absolutely terrible compared to the other, the prior experiences. He recovered it but he noticed that his fever was 101 and muscle ache but he all knew the side effects this time around were completely different, completely different what the prior vaccine had. His spouse on the other hand, had to be hospitalized but now here she was perfectly fine. But he on the other hand this time, he was not good at all for like 2 days or so, 2 or 3 days. "Name of the vaccine: Pfizer COVID-19 Vaccine. On confirming the name of the vaccine, he stated, "He have received both of his initial vaccines and for the booster." Reporter type: He stated, "He was immunocompromised because he was on lot of medication and high risk. "Reporter type: Consumer stated, "He was a 'lowly' professor for academics." Date of booster shot: He stated, "He didn't have his card in front of him. It was last Monday he believed, Last Monday or Tuesday. No, his spouse would know and she was not here right now, last Friday. It was the last Friday or Saturday. That's more accurate." Height: Consumer stated, "he was about 5'11."LOT#: Consumer stated, "he didn't have that. He could give the pharmacy information and they would be able to provide it to you. That was on the vaccine card. His spouse has that. He didn't have that information on hand." Expiration date: Consumer stated, "She had the card so she knew about that and she was not here right now. He could call back again." Any prior vaccinations (within 4 weeks): Consumer stated, "He had the Flu vaccine (Suspect captured as per verbatim) probably about a month earlier. My mother had earlier. He had it probably back in October or September, late September." Name and LOT#: Consumer stated, "His doctor provided him that he did not know that. It was the, they would know. He was impatient when it came so." Date of flu shot: Consumer stated, "He didn't have that. Anything he knew he was more than willing to review the Pfizer so they gave the shot to me." Lab test: Consumer stated, "Not within 2 weeks, no." Anatomical site of vaccine administration: Consumer stated, "His right deltoid not my bicep but muscle underneath it. His right lower arm (Right Deltoid)." Treatment for adverse event: Consumer stated, "Yes, over the counter Ibuprofen." Dose and frequency: Consumer stated, "He was freaked out a lot for 3 days and it was bad, probably about 6 to 800, probably 3 times a day, 200 mg tablets." When probed if the spouse also had the side effects, Reporter stated, "During the first vaccine. During her first, their first dose, they both had side effects. Hers were different than him. She had also been hospitalized. He had not been. She was really pretty much down and in bed for about 3 days. He thought you could just reach out to her as well. He would give them her phone number."  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202101545979 similar report from same reporter