Chest pain; she didn't feel well at all; doesn't feel well; couldn't do any regular physical activity and each simple movement there is a chest and heart; couldn't do any regular physical activity and each simple movement there is a chest and heart; Chills; Body ache; Fever; Muscle pain; Arm pain/ arm ache; Sore throat; This is a spontaneous report received from contactable reporter(s) (Consumer or other non HCP). The reporter is the patient.  A female patient received BNT162b2 (BNT162B2), on 25Jun2022 as dose 4 (booster), single (Batch/Lot number: unknown) for covid-19 immunisation. The patient's relevant medical history and concomitant medications were not reported. Vaccination history included: Covid-19 vaccine (Primary Immunization series complete; unknown manufacturer), for Covid-19 immunization; Covid-19 vaccine (Dose 3 booster, Manufacturer unknown), for Covid-19 immunization. The following information was reported: PAIN IN EXTREMITY (non-serious) with onset 25Jun2022, outcome "unknown", described as "Arm pain/ arm ache"; PAIN (non-serious) with onset 25Jun2022, outcome "unknown", described as "Body ache"; CHEST PAIN (hospitalization) with onset 25Jun2022, outcome "unknown"; CHILLS (non-serious) with onset 25Jun2022, outcome "unknown"; PYREXIA (non-serious) with onset 25Jun2022, outcome "unknown", described as "Fever"; MYALGIA (non-serious) with onset 25Jun2022, outcome "unknown", described as "Muscle pain"; OROPHARYNGEAL PAIN (non-serious) with onset 25Jun2022, outcome "unknown", described as "Sore throat"; MALAISE (non-serious), outcome "unknown", described as "she didn't feel well at all; doesn't feel well"; DECREASED ACTIVITY (non-serious), CARDIAC DISORDER (non-serious), outcome "unknown" and all described as "couldn't do any regular physical activity and each simple movement there is a chest and heart". The patient was hospitalized for chest pain (start date: 01Jul2022). The event "chest pain" required physician office visit and emergency room visit. The patient underwent the following laboratory tests and procedures: SARS-CoV-2 test: Negative; X-ray: Negative.  Clinical course: Consumer stated she got the fourth Pfizer vaccine on 25Jun2022 and since it was very bad side effects like chills, body ache, fever, arm ache. Reporter (her husband) stated, since the fourth booster on 25Jun2022 then after she got fever, chills, body ache, pain, muscle pain, chest pain, arm pain, sore throat. It's continued since 25Jun2022, end of June, she didn't feel well at all. Then, she got chest pain on 01Jul2022, she checked with doctor and then have to rushed to the hospital. She went to the emergency room, at emergency room, x ray, corona, covid test and heart test. She spent like one night in the hospital, the following day they did the test and all of these came negative. They advised her to check again with doctor claiming that these symptoms are related to the booster injection and they advised us to contact Pfizer to report all of these side effects in order to report side effects and since last Saturday from hospital to now she doesn't feel well, she couldn't do any regular physical activity and each simple movement there was a chest and heart.  No follow-up attempts are possible; information about lot/batch number cannot be obtained. No further information is expected.