he became gravely ill and was just out of it; Had cold sweats; Cough; Muscle aches; Chills; Weird dreams/had horrible dreams; dead to the world; Delusional while sleeping/he had delusional dreams; Weight loss/lost 12 pounds; Sleeping a lot; He also had no energy; nauseated; He was confused; Strength isn't what it used to be/feeling tired and weak; Fatigue/feeling tired/worn out; Loss of appetite; No smell or taste/loss sense of smell and taste; No smell or taste/loss sense of smell and taste; This is a spontaneous report received from contactable reporter (Consumer) from medical information team. The reporter is the patient. Other Case identifier: US-PFIZER INC-202101739708 (Pfizer).  A 67 year-old male patient received bnt162b2 (BNT162B2), administered in arm left, administration date 21Sep2021 13:30 (Lot number: FF2588) at the age of 67 years as dose 1, single for covid-19 immunisation. Relevant medical history included: "oral surgery" (unspecified if ongoing), notes: for bacterial infection; "lost 98 pounds prior to the vaccine" (unspecified if ongoing), notes: he lost 98 pounds prior to the vaccine because he had oral surgery for a bacterial infection. There were no concomitant medications. The following information was reported: SOMNOLENCE (medically significant) with onset 23Sep2021, outcome "unknown", described as "dead to the world"; DELUSIONAL PERCEPTION (medically significant) with onset 23Sep2021, outcome "recovered" (Sep2021), described as "Delusional while sleeping/he had delusional dreams"; WEIGHT DECREASED (non-serious) with onset Sep2021, outcome "recovering", described as " Weight loss/lost 12 pounds "; ILLNESS (medically significant) with onset 23Sep2021, outcome "unknown", described as "he became gravely ill and was just out of it"; COLD SWEAT (non-serious) with onset 23Sep2021, outcome "recovered" (2021), described as "Had cold sweats"; FATIGUE (non-serious) with onset Sep2021, outcome "recovering", described as "Fatigue/feeling tired/worn out"; DECREASED APPETITE (non-serious) with onset Sep2021, outcome "recovering", described as "Loss of appetite"; AGEUSIA (non-serious), ANOSMIA (non-serious) all with onset Sep2021, outcome "recovering" and all described as "No smell or taste/loss sense of smell and taste"; COUGH (non-serious) with onset 23Sep2021, outcome "recovered" (Oct2021), described as "Cough"; MYALGIA (non-serious) with onset 23Sep2021, outcome "recovered" (Oct2021), described as "Muscle aches"; CHILLS (non-serious) with onset 23Sep2021, outcome "recovered" (Oct2021), described as "Chills"; ASTHENIA (non-serious) with onset Sep2021, outcome "not recovered", described as "Strength isn't what it used to be/feeling tired and weak"; NIGHTMARE (non-serious) with onset 23Sep2021, outcome "recovered" (2021), described as "Weird dreams/had horrible dreams"; HYPERSOMNIA (non-serious) with onset Sep2021, outcome "recovering", described as "Sleeping a lot"; ASTHENIA (non-serious) with onset Sep2021, outcome "unknown", described as "He also had no energy"; NAUSEA (non-serious) with onset Sep2021, outcome "unknown", described as "nauseated"; CONFUSIONAL STATE (non-serious) with onset Sep2021, outcome "unknown", described as "He was confused". The events  were evaluated at the physician office visit. The patient underwent the following laboratory tests and procedures: blood test: (2021) good; weight: (2021) 12, notes: lost 12 pounds. Therapeutic measures were taken as a result of cough, myalgia, chills.