He had a  foul taste in his mouth; sore throat; couldn't eat; He tried to drink water, but it was hard; He got home and noticed that his arm was sore a lot sooner than with the other two shots.; Felt like he was foaming at the mouth, lots of saliva, he kept tossing it out, rinsing, and trying to drink water; I didn't expect to be down; restless; it was a horrible; no appetite; he was tired/Felt tired and restless; chills; little bit of chest discomfort; headache; muscle aches; maybe a fever; little swelling at the injection site; diarrhea; nausea; vomiting; very sick; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) from medical information team for a Pfizer sponsored program. The reporter is the patient.  A 63 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 06Jan2022 (Lot number: FJ1611) at the age of 63 years as dose 3 (booster), single for covid-19 immunisation. The patient had no relevant medical history. There were no concomitant medications. Vaccination history included: Bnt162b2 (First Dose of the Pfizer Covid Vaccine: Given on 21Jun2021; Lot Number: EW0183), administration date: 21Jun2021, when the patient was 63 years old, for covid-19 immunization, reaction(s): "The first two shots it took a day or so before his arm got sore"; Bnt162b2 (Second Dose of the Pfizer Covid Vaccine:  Date given unknown; caller states that it was within the time frame, but that he has two cards and they didn't put the date on his second card), for Covid-19 Immunization, reaction(s): "The first two shots it took a day or so before his arm got sore"; Flu vaccine (He also had Flu vaccine once that made him this sick), reaction(s): "sick". The following information was reported: ILLNESS (non-serious) with onset Jan2022, outcome "recovering", described as "very sick"; TASTE DISORDER (non-serious) with onset 09Jan2022, outcome "recovering", described as "He had a  foul taste in his mouth"; OROPHARYNGEAL PAIN (non-serious) with onset 09Jan2022, outcome "recovered" (Jan2022), described as "sore throat"; FATIGUE (non-serious) with onset Jan2022, outcome "recovering", described as "he was tired/Felt tired and restless"; CHILLS (non-serious) with onset Jan2022, outcome "recovering", described as "chills"; CHEST DISCOMFORT (non-serious) with onset Jan2022, outcome "recovering", described as "little bit of chest discomfort"; HEADACHE (non-serious) with onset Jan2022, outcome "recovering", described as "headache"; MYALGIA (non-serious) with onset Jan2022, outcome "recovering", described as "muscle aches"; PYREXIA (non-serious) with onset Jan2022, outcome "recovering", described as "maybe a fever"; VACCINATION SITE SWELLING (non-serious) with onset Jan2022, outcome "recovering", described as "little swelling at the injection site"; DIARRHOEA (non-serious) with onset Jan2022, outcome "recovering", described as "diarrhea"; NAUSEA (non-serious) with onset Jan2022, outcome "recovering", described as "nausea"; VOMITING (non-serious) with onset Jan2022, outcome "recovering", described as "vomiting"; EATING DISORDER (non-serious) with onset 09Jan2022, outcome "recovering", described as "couldn't eat"; DECREASED APPETITE (non-serious) with onset Jan2022, outcome "recovering", described as "no appetite"; PAIN IN EXTREMITY (non-serious) with onset 06Jan2022, outcome "unknown", described as "He got home and noticed that his arm was sore a lot sooner than with the other two shots."; FOAMING AT MOUTH (non-serious) with onset Jan2022, outcome "unknown", described as "Felt like he was foaming at the mouth, lots of saliva, he kept tossing it out, rinsing, and trying to drink water"; DEPRESSED MOOD (non-serious) with onset Jan2022, outcome "recovering", described as "I didn't expect to be down"; RESTLESSNESS (non-serious) with onset Jan2022, outcome "unknown", described as "restless"; DYSPHAGIA (non-serious) with onset 09Jan2022, outcome "unknown", described as "He tried to drink water, but it was hard"; MALAISE (non-serious) with onset Jan2022, outcome "unknown", described as "it was a horrible".  Additional information:Patient had the booster shot. After the booster shot he was got very, very sick. The patient was wants to know the side effects of the booster shot.Patient was got the other two shots already and this was the third one and states he was got the shot for precautions and because they said we should.  States that when he went to take it he felt pretty good and pretty healthy, not sick.he was not have a primary care provider, he was not seen one in a long time. After receiving the shot he felt okay. He was got home and noticed that his arm was sore a lot sooner than with the other two shots. The first two shots it took a day or so before his arm got sore. With the booster dose it was sore within a couple of hours.He felt tired and restless, so he laid down and did not do a whole lot.He felt pretty sick. He couldn't eat and that went on for a couple of days. On the third day he had a very, very bad sore throat.  He also had a real foul taste in his mouth.  He wasn't eating much and hadn't eaten for a couple of days.  He tried to drink water, but it was hard with his sore throat. It was felt like he was foaming at the mouth, lots of saliva, he kept tossing it out, rinsing, and trying to drink water.it was a horrible experience and he was sure it was because of the Booster Shot.He was curious about what was the benefit.?  He was not want to go through something like this ever again; 5 days of being sick and not knowing what is going on.He was a believer in self-healing instead of going to a doctor. Says now he was recuperated and was feeling decent.  His  sore throat was gone and he was starting to eat fruits and vegetables to try and get himself back to normal. States he cannot believe what he was put through. Asks if this was normal?,He was somewhat recovered, but not completely from his symptoms. He had improved overall, he had not gotten worse.  No follow-up attempts are possible. No further information is expected.