she had a viral pneumonia.; she was short of breath; felt like something was in the patient's throat; It felt like something was in the patient's throat and she would try to cough it up but it wouldn't come up. /The caller thinks it could be swelling in the patient's throat; had a temperature of 105; at first she had the hiccups; lungs are all white; the patient got sick; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP).  A 57 year-old female patient received bnt162b2 (BNT162B2), administration date Oct2021 (Batch/Lot number: unknown) at the age of 57 years as dose 3 (booster), single for covid-19 immunisation. Relevant medical history included: "high blood pressure" (unspecified if ongoing), notes: high blood pressure. The patient's concomitant medications were not reported. Vaccination history included: Bnt162b2 (Dose: 1), for COVID-19 Immunisation; Bnt162b2 (Dose: 2), for COVID-19 Immunisation. The following information was reported: PNEUMONIA VIRAL (hospitalization) with onset 10Nov2021, outcome "unknown", described as "she had a viral pneumonia."; DYSPNOEA (hospitalization) with onset 02Nov2021, outcome "not recovered", described as "she was short of breath"; COMA (hospitalization) with onset 2021, outcome "not recovered", described as "almost in a coma state"; SENSATION OF FOREIGN BODY (hospitalization) with onset 2021, outcome "unknown", described as "felt like something was in the patient's throat"; PHARYNGEAL SWELLING (hospitalization) with onset 2021, outcome "unknown", described as "It felt like something was in the patient's throat and she would try to cough it up but it wouldn't come up. /The caller thinks it could be swelling in the patient's throat"; PYREXIA (hospitalization) with onset 2021, outcome "recovered" (2021), described as "had a temperature of 105"; ILLNESS (non-serious) with onset 2021, outcome "not recovered", described as "the patient got sick"; HICCUPS (non-serious) with onset 02Nov2021, outcome "not recovered", described as "at first she had the hiccups"; LUNG DISORDER (non-serious) with onset 2021, outcome "not recovered", described as "lungs are all white".  Two weeks after the third dose the patient got sick- she was short of breath and at first she had the hiccups but she was still able to go to work. Every time the patient got the hiccups she got short of breath. This was the middle of the week that the patient started noticing it. The patient took the shot around 15Oct2021 and then two weeks later, she was in good health and only had high blood pressure before this. It felt like something was in the patient's throat and she would try to cough it up but it wouldn't come up. The patient took cold medicine gargled with peroxide. The patient kept trying to cough up whatever was in her throat. The reporter thought it could have been swelling in the patient's throat but she didn't know what it was. The patient only felt short of breath when she had the hiccups, she felt okay outside of this.The patient went in to the hospital on 06Nov2021 because she was short of breath and had a temperature of 105. The patient took aspirin (BAYER ASPIRIN) and her temperature went away and when she got there she was given oxygen and a nebulizer. The hospital tested the patient 3 times for COVID-19 and they said she didn't have COVID-19. On 08Nov2021 they transferred the patient to CCU, the critical care unit, because she needed more oxygen. By 10Nov2021 they transferred the patient to the extracorporeal membrane oxygenation (ECMO) machine and the ventilator and said she had a viral pneumonia. The patient was in critical condition, life support with breathing at 100. All of the patient's organs were working fine but her lungs were all white. They had given the patient every antibiotic and none of them were working. The patient was not doing good and she was not responding to commands and the ECMO and ventilator were at 100% but none of her organs have shut down. They were going to reduce the patient's sedation to see if she will respond. Every time they decreased the patient's sedation her heart rate increased so they had to turn it back on. The patient was not getting better. The patient was almost in a coma state; she was on hydromorphone (DILAUDID) for sedation. The patient was hospitalized for pneumonia viral, dyspnoea, coma, sensation of foreign body, pharyngeal swelling, pyrexia (start date: 06Nov2021). The patient underwent the following laboratory tests and procedures: body temperature: (02Nov2021) 105; sars-cov-2 test: (Nov2021) didn't have covid, notes: The hospital tested the patient 3 times for covid and they said she didn't have covid. Therapeutic measures were taken as a result of pneumonia viral, dyspnoea, coma, sensation of foreign body, pharyngeal swelling, pyrexia, illness, hiccups.  The lot number for bnt162b2 was not provided and will be requested during follow-up.; Sender's Comments: Linked Report(s) : US-PFIZER INC-202101676374 Same patient/drug and different dose/AEs.