sick; Chills; shaking; real bad flu like symptoms; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A 64-year-old female patient received BNT162b2 (BNT162B2), on 29Sep2021 as dose 3 (booster), single (Lot number: FE3592) at the age of 64 years for covid-19 immunisation. The patient's relevant medical history included: "Diabetes" (ongoing), notes: Diagnosed about 15 years ago. It is under control with medication.; "asthma" (unspecified if ongoing), notes: She has had bouts of asthma usually once a year. There were no concomitant medications. Vaccination history included: BNT162b2 (DOSE 1, SINGLE Pfizer Covid-19 vaccine: 06Mar2021, NDC: 59267-100-2, Lot: EN6199, Exp: 30Jun2021), administration date: 06Mar2021, when the patient was 64-year-old, for COVID-19 Immunization; BNT162b2 (DOSE 2, SINGLE Pfizer Covid-19 vaccine: 31Jul2021, Lot: EN8727, card was crinkled up and said that she thinks it is EN8727., Exp: 31Jul2021, She had flu symptoms that lasted 12-24 hours and then she was fine.), administration date: 31Jul2021, when the patient was 64-year-old, for COVID-19 Immunization, reaction(s): "had flu symptoms", "2nd dose Pfizer Covid-19 vaccine: 31Jul2021". The following information was reported: CHILLS (non-serious) with onset Sep2021, outcome "recovered" (Sep2021); INFLUENZA LIKE ILLNESS (non-serious) with onset Sep2021, outcome "recovered" (Sep2021), described as "real bad flu like symptoms"; TREMOR (non-serious) with onset Sep2021, outcome "recovered" (Sep2021), described as "shaking"; ILLNESS (non-serious) with onset Sep2021, outcome "recovered" (Sep2021), described as "sick".  Additional information: Caller was calling about the Pfizer mRNA vaccine and reported that she was in a study. She has been having complications and symptoms after receiving the vaccine. She said that when she goes in to report her symptoms, they act like she invented it and like she was crazy. Her physician that was running the study, who was also her primary care diabetes doctor, said that that they cannot treat her anymore. Her physician was doing the research and told her to get the flu shot and she wishes she hadn't. She has had bouts of asthma usually once a year, but she has had shortness of breath since she had the flu shot. They day after she had the injection she had to go back to her doctor's office and had severe cold symptoms and that was when the shortness of breath started. 12-24 hours after the injection she got real sick. She had headaches that started and she was getting the flu symptoms every week. They told her to come in when she started her symptoms. Since she received a certified letter from her doctor telling her that she could no longer be treated, they don't really want to see her for the study either. She would not have gotten it if the mRNA flu vaccine was not for her physician. Severe cold symptoms: she had to go into the study the day after her injection because she was real sick. She said that her symptoms are persisting, but are off and on. Said that she gets the severe cold symptoms at least once a week. She was referred to a pulmonologist. She never had these symptoms before the vaccine and they told her to go see a pulmonologist and handle all of this herself. In the letter due to her circumstances and her symptoms the physician said that she could no longer see her. She would never had lost her doctor if she would have never got the vaccine and was in the study. She had to go back to the study the next day because she had severe flu symptoms. She got really sick for about 24 hours, clarified over night for about 12 hours. Chills and shaking, and real bad flu like symptoms. She did not get another booster. Her symptoms lasted 12-24 hours and then she was fine again.