tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.; tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.; tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.; tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.; tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.; tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.; tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.; tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.; this is a spontaneous report received from a contactable reporter(s) (consumer or other non-hcp) from the regulatory authority-web. the reporter is the patient. regulatory number: it-minisal02-843972. a 49-year-old patient received bnt162b2 (comirnaty), intramuscular, administered in deltoid left, administration date 14feb2022 10:58 (lot number: 33193tb, expiration date: 09mar2022) at the age of 49 years as dose 3 (booster), single for covid-19 immunization. the patient's relevant medical history and concomitant medications were not reported. vaccination history included: comirnaty (dose 1 (batch unknown)), for covid-19 immunization; comirnaty (dose 2 (batch unknown)), for covid-19 immunization. the following information was reported: syncope (medically significant), tachycardia (non-serious), nausea (non-serious), dizziness (non-serious), extrasystoles (non-serious), chest discomfort (non-serious) all with onset 14feb2022, outcome "recovered" (feb2022) and all described as "tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting."; lymphadenopathy (non-serious), chills (non-serious) all with onset 14feb2022, outcome "recovering" and all described as "tachycardia, extrasystole, nausea, swollen lymph nodes in the vaccine arm, dizziness, tightness in the chest, fainting.". therapeutic measures were taken as a result of lymphadenopathy with aspirin c intake at one tablet a day. the patient was not in er (emergency room) for events. impact on quality of life was reported as (8/10). reporter comment: i don't suffer from allergies or previous illnesses. after the vaccine i found tachycardia, nausea, fainting, swollen axillary lymph node in the injection arm, chills and tightness in the chest. no follow-up attempts are possible. no further information is expected