chest pain; heart pain; difficulty breathing; got super sick; chills; fever; body aches; tachycardia; This spontaneous case was reported by a consumer and describes the occurrence of TACHYCARDIA (tachycardia), CHEST PAIN (chest pain), ANGINA PECTORIS (heart pain) and DYSPNOEA (difficulty breathing) in a 29-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 059h21a, 048c21a and 024c21a) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.   On 05-May-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 02-Jun-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 12-Jan-2022, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 12-Jan-2022, the patient experienced TACHYCARDIA (tachycardia) (seriousness criterion medically significant), ILLNESS (got super sick), CHILLS (chills), PYREXIA (fever) and MYALGIA (body aches). On 15-Jan-2022, the patient experienced CHEST PAIN (chest pain) (seriousness criterion medically significant), ANGINA PECTORIS (heart pain) (seriousness criterion medically significant) and DYSPNOEA (difficulty breathing) (seriousness criterion medically significant). The patient was treated with ASPIRIN [ACETYLSALICYLIC ACID] on 17-Jan-2022 for Adverse event, at an unspecified dose and frequency. At the time of the report, TACHYCARDIA (tachycardia), CHEST PAIN (chest pain), ANGINA PECTORIS (heart pain), DYSPNOEA (difficulty breathing), ILLNESS (got super sick), CHILLS (chills), PYREXIA (fever) and MYALGIA (body aches) had not resolved.        For mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown), the reporter did not provide any causality assessments.   Concomitant medications were not provided.  On 14-JAN-2022 patient was better.   Company comment: This is a spontaneous case concerning a 29-year-old, female patient with no reported medical history, who experienced the unexpected serious events of chest pain, heart pain and difficulty breathing and unexpected non-serious events of illness and tachycardia and expected non-serious events of chills, pyrexia and myalgia. The events illness, chills, pyrexia, tachycardia and myalgia occurred the same day after the third dose of mRNA-1273 vaccine administration while the events chest pain, heart pain and difficulty breathing occurred 3 days after the third dose of mRNA-1273 vaccine administration. No reported treatment information. The outcome of the events illness, chills, pyrexia, tachycardia, myalgia, chest pain, heart pain and difficulty breathing were not resolved from the time of last observation. The benefit-risk relationship of mRNA-1273 vaccine is not affected by this report.; Sender's Comments: This is a spontaneous case concerning a 29-year-old, female patient with no reported medical history, who experienced the unexpected serious events of chest pain, heart pain and difficulty breathing and unexpected non-serious events of illness and tachycardia and expected non-serious events of chills, pyrexia and myalgia. The events illness, chills, pyrexia, tachycardia and myalgia occurred the same day after the third dose of mRNA-1273 vaccine administration while the events chest pain, heart pain and difficulty breathing occurred 3 days after the third dose of mRNA-1273 vaccine administration. No reported treatment information. The outcome of the events illness, chills, pyrexia, tachycardia, myalgia, chest pain, heart pain and difficulty breathing were not resolved from the time of last observation. The benefit-risk relationship of mRNA-1273 vaccine is not affected by this report.