I was sick for 5 days; The booster put me in bed for 5 days; I had 102 degree fever for 3 days; chills; Body ache; Headaches; shaking really hard; No appetite; I had profuse sweating; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 61 year-old female patient received bnt162b2 (BNT162B2), administered in arm left (Lot number: FL3197) as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "Sjogren's syndrome" (unspecified if ongoing); "Fibromyalgia" (unspecified if ongoing); "High blood pressure" (unspecified if ongoing); "Connective tissue disease" (unspecified if ongoing); "Aneurysm" (unspecified if ongoing), notes: I have an aneurysm on my heart.; "AFib" (unspecified if ongoing); "Anxiety" (unspecified if ongoing); "Allergies" (unspecified if ongoing); "thyroid" (unspecified if ongoing), notes: I had have to my thyroid remove so that's why I take it.; "lung cancer" (unspecified if ongoing), notes: I had a lung cancer but I am a lung cancer survivor. Concomitant medication(s) included: LISINOPRIL taken for blood pressure abnormal; LORATADINE taken for hypersensitivity; TOPROL taken for atrial fibrillation; LIPITOR; XARELTO; LEXAPRO taken for anxiety; LEVOTHYROXINE taken for thyroid disorder. Vaccination history included: Bnt162b2 (Dose:1, Lot:EN6205, my first vaccine I didn't have any symptoms), administration date: 11Mar2021, when the patient was 60 years old, for Covid-19 Immunization, reaction(s): "I didn't have any symptoms"; Bnt162b2 (Dose:2, Lot:ER2613), administration date: 01Apr2021, when the patient was 60 years old, for Covid-19 Immunization, reaction(s): "I had chills and body ache for 24 hours", "I had chills and body ache for 24 hours". The following information was reported: IMMUNISATION (non-serious), outcome "unknown", described as "booster"; PYREXIA (non-serious), outcome "recovered", described as "I had 102 degree fever for 3 days"; CHILLS (non-serious), outcome "recovered", described as "chills"; PAIN (non-serious), outcome "recovered", described as "Body ache"; HEADACHE (non-serious), outcome "recovered", described as "Headaches"; TREMOR (non-serious), outcome "recovered", described as "shaking really hard"; DECREASED APPETITE (non-serious), outcome "recovered", described as "No appetite"; HYPERHIDROSIS (non-serious), outcome "recovered", described as "I had profuse sweating"; ILLNESS (non-serious), outcome "recovered", described as "I was sick for 5 days; The booster put me in bed for 5 days". Relevant laboratory tests and procedures are available in the appropriate section. Therapeutic measures were taken as a result of pyrexia, chills, pain, headache, tremor, illness. COVID-19 Vaccine is a Pfizer product, COVID-19 Vaccine manufacturer Unspecified, Dates for COVID-19 Vaccine (Start Unspecified Stop Unspecified), unknown NDC and UPC number of COVID-19 Vaccine, Expiry Date of COVID-19 Vaccine Unknown. Additional information; Treatment: The patient stated "Tylenol." LOT for the Tylenol:, "The patient don't have that, the patient at work right now and my bottle of Tylenol at home. I can't take anything because I am on a blood thinner, so that's the only thing I can take is Tylenol. But the Tylenol did help but when the Tylenol start 'wearing' off I can really feel it because the chills start coming back really hard again. I was sick for 5 days, for last 2 days I had fever for 3 days and then the last 2 days after my fever broke I had profuse sweating, I mean bad like I couldn't sleep dry 'clothed', just like profuse sweating." The patient further stated, "I have had, when I got my first vaccine I didn't have any symptoms at all,  the second vaccine, I had chills and body ache for 24 hours and but then the booster put me in bed for 5 days." When probed if the patient had not any other vaccination 4 weeks prior to COVID 19 Vaccine, the patient stated, the first two were like in a hospital and the last one was done at withheld.  No follow-up attempts are possible. No further information is expected.