headache; nausea; swelling around injection site; heaviness in chest; stomach issues since injection; enlarged spleen; was in bed for four days; stomach issues since injection; This spontaneous case was reported by a consumer (subsequently medically confirmed) and describes the occurrence of HEADACHE (headache), NAUSEA (nausea), VACCINATION SITE SWELLING (swelling around injection site), CHEST DISCOMFORT (heaviness in chest) and the first episode of ABDOMINAL DISCOMFORT (stomach issues since injection) in a 47-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     NO Medical History Information was reported.  Concomitant products included DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) for an unknown indication.    On 14-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 14-Jan-2021, the patient experienced HEADACHE (headache), NAUSEA (nausea), VACCINATION SITE SWELLING (swelling around injection site), CHEST DISCOMFORT (heaviness in chest), the first episode of ABDOMINAL DISCOMFORT (stomach issues since injection), SPLENOMEGALY (enlarged spleen), BED REST (was in bed for four days) and the second episode of ABDOMINAL DISCOMFORT (stomach issues since injection). The patient was treated with DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) for Adverse event, at an unspecified dose and frequency. On 18-Jan-2021, BED REST (was in bed for four days) had resolved. At the time of the report, HEADACHE (headache), NAUSEA (nausea), VACCINATION SITE SWELLING (swelling around injection site), CHEST DISCOMFORT (heaviness in chest), SPLENOMEGALY (enlarged spleen) and the last episode of ABDOMINAL DISCOMFORT (stomach issues since injection) outcome was unknown. Not Provided      The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown. This case was received via an unknown source (no reference has been entered for a health authority or license partner) on 11-Feb-2021 and was forwarded to Moderna on 11-Feb-2021.    This spontaneous case was reported by a consumer (subsequently medically confirmed) and describes the occurrence of HEADACHE (headache), NAUSEA (nausea), VACCINATION SITE SWELLING (swelling around injection site), CHEST DISCOMFORT (heaviness in chest) and the first episode of ABDOMINAL DISCOMFORT (stomach issues since injection) in a 47-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     NO Medical History Information was reported.  Concomitant products included DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) for an unknown indication.    On 14-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 14-Jan-2021, the patient experienced HEADACHE (headache), NAUSEA (nausea), VACCINATION SITE SWELLING (swelling around injection site), CHEST DISCOMFORT (heaviness in chest), the first episode of ABDOMINAL DISCOMFORT (stomach issues since injection), SPLENOMEGALY (enlarged spleen), BED REST (was in bed for four days) and the second episode of ABDOMINAL DISCOMFORT (stomach issues since injection). The patient was treated with DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) for Adverse event, at an unspecified dose and frequency. On 18-Jan-2021, BED REST (was in bed for four days) had resolved. At the time of the report, HEADACHE (headache), NAUSEA (nausea), VACCINATION SITE SWELLING (swelling around injection site), CHEST DISCOMFORT (heaviness in chest), SPLENOMEGALY (enlarged spleen) and the last episode of ABDOMINAL DISCOMFORT (stomach issues since injection) outcome was unknown. Not Provided      The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.