felt a little ill; This is a spontaneous report received from a contactable reporter(s) (Consumer or other non HCP) for a Pfizer sponsored program (159558). The reporter is the patient.  A 67 year-old female patient received bnt162b2 (BNT162B2), administered in arm, administration date 22Jan2021 (Lot number: EL9262) at the age of 66 as dose 1, single for covid-19 immunisation. Relevant medical history included: "osteopenia" (unspecified if ongoing); "osteoporosis" (unspecified if ongoing); "Arrhythmia heart" (unspecified if ongoing); "Blood pressure" (unspecified if ongoing); "Cholesterol" (unspecified if ongoing); "Diabetes" (unspecified if ongoing); "Thyroid" (unspecified if ongoing); "Extreme dry eyes" (unspecified if ongoing); "Hashimottos thyroid disease" (unspecified if ongoing); "High Blood Pressure" (unspecified if ongoing); "Sleep apnea" (unspecified if ongoing); "bradycardia" (unspecified if ongoing); "60 dehydration issues" (unspecified if ongoing); "Type II diabetes" (unspecified if ongoing); "Weakened immune system" (unspecified if ongoing). Concomitant medication(s) included: PREDNISOLONE ACETATE taken for dry eye, start date: 30Sep2021, stop date: 26Oct2021; SYNTHROID taken for thyroid disorder (ongoing); METFORMIN taken for diabetes mellitus (ongoing); CRESTOR taken for blood cholesterol (ongoing); TOPROL taken for blood pressure abnormal (ongoing); LISINOPRIL taken for blood pressure abnormal (ongoing); FLECAINIDE ACETATE taken for arrhythmia (ongoing); XANAX; PROLIA taken for osteoporosis (ongoing); PRILOSEC [OMEPRAZOLE MAGNESIUM] (ongoing); CALCIUM + VIT D taken for osteopenia (ongoing). Vaccination history included: Flu vaccine (she ended up in ER very sick with high fever, drank a lot of fluids, fever got up to 103, also reacts that way to flu vaccine and shingles vaccine and the measles vaccine., Anatomical Site of Injection: Arm, No. of previous doses: Once a year), reaction(s): "very sick", "high fever, fever got up to 103"; Shingles vaccine (she ended up in ER very sick with high fever, drank a lot of fluids, fever got up to 103, also reacts that way to flu vaccine and shingles vaccine and the measles vaccine.), reaction(s): "very sick", "high fever, fever got up to 103"; Measles vaccine (she ended up in ER very sick with high fever, drank a lot of fluids, fever got up to 103, also reacts that way to flu vaccine and shingles vaccine and the measles vaccine.), reaction(s): "very sick", "high fever, fever got up to 103". The following information was reported: ILLNESS (non-serious), outcome "unknown", described as "felt a little ill". Relevant laboratory tests and procedures are available in the appropriate section.  Additional information: Agent stated there was a consumer on the phone calling today because she wanted to see if there was potassium phosphate in the three shots of the Pfizer Covid vaccine, with first dose she felt a little ill, with second dose and booster she ended up in ER very sick with high fever, drank a lot of fluids, fever got up to 103, also reacted that way to flu vaccine and shingles vaccine and the measles vaccine. She drank buttermilk once and ended up in ER for four hours because it contained potassium phosphate. Details are documented as provided by the transferring agent, caller disconnected during transfer, transfer incomplete. Phone out at 14:54 PM, 1st attempt by phone to Consumer to obtain contact information. Call answered by consumer who provided mailing address. Time at which first dose was captured was at Noon-ish. 2nd dose was administered on 12Feb2021, Time: Noon-ish, Anatomical Site of Injection: Arm, Batch/Lot Number: EM9809, Expiration Date 12Feb2021. Third dose was administered on 07Oct2021, Time: Noon-ish, Anatomical Site of Injection: Arm, Batch/Lot Number: EW0153, Expiration Date 07Oct2021. Flu shot was administered within four weeks prior to the first administration date of the suspect vaccine(s), Anatomical Site of Injection: Arm, No. of previous doses: Once a year, Date: Approx. 20Sep2021. Patient made sure Illness was well before getting vaccine and did not take it at same time as Flu vaccine. Family Medical History Relevant to AE: 10Sep2019-Zoster recombinant, very similar reaction, ended up in ER twice, fatigue, fever, felt like an infection. Was receiving numerous vaccines for a cruise and to update, still got sick on cruise on 07Dec2019. Felt like all symptoms of COVID-19. No reaction at all to other vaccines on list even the Zoster live in 2014. In 1978 the measles vaccine gave patient a full case and was in hospital 2 wks. in (Withheld). She was told that she was the only one who had a reaction. Adverse events: AE Term: 2nd vaccine 3 days, Onset Date: 13Feb2021, Onset Time: 2AM-ish. AE required visit to Emergency room. Admitted to ICU Duration for 3hrs approx. with Outcome Recovered, Date of recovery was 3 days. Treatment was received (Dehydration, dry heaves, Nausea) (IV, Tylonol/moltrin/Nausea meds in IV 2 antibiotics in IV, steroid). AE Term: 3rd Booster one week, Onset Date was 08Oct2021, Onset Time: Midnight close to 9th. AE required visit to Emergency room. Admitted to ICU for 3hrs approx., with Outcome Recovered, Date of recovery was 7 days, Treatment received (IV mix, Tylenol+Moltrin, anti-nausea). Reaction started later with arm breaking out also. Stayed in bed for 2 days. No major problems with 1st dose COVID-19 vaccine. She broke out her arm on 11Oct2021. Top to elbow, was still feverish. Dermatologist felt it had a system allergy to 2nd and 3rd vaccine. Covid 19 vaccine #2 about 8-10 hrs. after vaccine had fever over 102, worked hard at reducing fever with Tylenol+electrolyte fluids but still got extremely dehydrated with heaves/nausea. Went to ER after 24 hrs. IV Fluid, 2 antibiotics nausea meds, fever reduces in IV, plus steroids. Within 2 days or 3 felt better. She gets dehydrated very easily. Covid 19 vaccine 3, 07Oct2021, was fine for first 9-10 hrs. then fever set in. 24 hrs. later in ER after working hard at reducing it on her own. Got too dehydrated. Felt pretty bad for about a week. Rested as much as possible. Major rash from vaccine on 11Oct2021. Itched and hurt a lot. Not sure if preservatives or Salts, she does have issues with potassium phosphate (intolerance). Possibly doses could be reduced to half after 1st vaccine to top off 1st vaccine felt like vaccine overload. The patient underwent the following laboratory tests and procedures: adjusted calcium: 9 mg/dl; alanine aminotransferase normal: 61 units/l, notes: Normal; anion gap: 9, notes: Normal; aspartate aminotransferase increased: 68 units/l, notes: High; basophil count normal: 0 k/mm3, notes: Normal; basophil percentage: 0.3 %, notes: Normal; blood albumin: 3.8 g/dl, notes: Normal; blood alkaline phosphatase normal: 73 units/l, notes: Normal; blood bilirubin: 0.5 mg/dl; blood calcium: 8.8 mg/dl, notes: Low; blood chloride: 99 mEq/l, notes: Low; blood creatinine: 0.8 mg/dl, notes: Normal; blood glucose: 141 mg/dl, notes: High; blood potassium: 4.1 mEq/l, notes: Normal; blood sodium: 136 mEq/l; 135 mEq/l, notes: Low; blood urea: 15 mg/dl, notes: Normal; carbon dioxide: 27 mEq/l, notes: Normal; creatinine renal clearance: 81.8 ml/min; 66.4 ml/min, notes: Normal; eosinophil count normal: 0 k/mm3, notes: Normal; eosinophil percentage: 0.5 %, notes: Normal; glomerular filtration rate: >60; hematocrit: 39.7 %, notes: Normal; hemoglobin: 12.6 g/dl, notes: Normal; immature granulocyte count: 0.03k/mm3, notes: Normal; immature granulocyte percentage increased: 0.5 %, notes: High; lymphocyte count normal: 0.5k/mm3, notes: Normal; lymphocyte percentage decreased: 7.5 %, notes: Low; mean cell hemoglobin concentration decreased: 31.7 g/dl, notes: Low; mean cell hemoglobin normal: 27 pg, notes: Normal; mean cell volume: 85.2 fl, notes: Normal; mean platelet volume: 11.5 fl, notes: Normal; monocyte count normal: 0.7k/mm3, notes: Normal; monocyte percentage: 11.9 %, notes: Normal; neutrophil count normal: 4.9k/mm3, notes: Normal; neutrophil percentage increased: 79.3 %, notes: High; platelet count: 175k/mm3, notes: Normal; protein total normal: 7.5 g/dl, notes: Normal; red blood cell count normal: 4.66m/mm3, notes: Normal; red cell distribution width normal: 14.1 %, notes: Normal; red cell distribution width normal: 43.8 fl, notes: Normal; white blood cell count normal: 6.1k/mm3, notes: Normal.  Follow-up attempts are completed and no further information is expected.