Can't go outside for longer than 10mins or she breaks out in a red splotchy rash all over body; "Heat sensitivity"; Swollen lymph nodes in arm pits both sides; Arm of injection rash the size of her hand; The arm of injection on the top half from elbow to shoulder was swollen and hard; Arm of injection hot; Arm pain; Dizziness, everytime I got up I felt like I was going to pass out; Weakness, couldn't get out of bed; Pounding headache; Injection site pain; Overwhelming tiredness/fatigue; Joint pain; Muscle pain; Chills; Nausea; Low grade fever; This spontaneous case was reported by a consumer and describes the occurrence of PAIN IN EXTREMITY (arm pain), DIZZINESS (dizziness, everytime I got up I felt like I was going to pass out), ASTHENIA (weakness, couldn't get out of bed), PERIPHERAL SWELLING (the arm of injection on the top half from elbow to shoulder was swollen and hard) and FEELING HOT (arm of injection hot) in a 54-year-old female patient who received mRNA-1273 (batch no. unknown) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.    On 06-Apr-2021, the patient received first dose of mRNA-1273 (unknown route) 1 dosage form. On 06-Apr-2021, the patient experienced PAIN IN EXTREMITY (arm pain), DIZZINESS (dizziness, everytime I got up I felt like I was going to pass out), ASTHENIA (weakness, couldn't get out of bed), HEADACHE (pounding headache), VACCINATION SITE PAIN (injection site pain), FATIGUE (overwhelming tiredness/fatigue), ARTHRALGIA (joint pain), MYALGIA (muscle pain), CHILLS (chills), NAUSEA (nausea) and PYREXIA (low grade fever). On 13-Apr-2021, the patient experienced PERIPHERAL SWELLING (the arm of injection on the top half from elbow to shoulder was swollen and hard), FEELING HOT (arm of injection hot) and RASH (arm of injection rash the size of her hand). On an unknown date, the patient experienced RASH ERYTHEMATOUS (can't go outside for longer than 10mins or she breaks out in a red splotchy rash all over body), TEMPERATURE INTOLERANCE ("heat sensitivity") and LYMPHADENOPATHY (swollen lymph nodes in arm pits both sides). On 10-Apr-2021, PAIN IN EXTREMITY (arm pain), DIZZINESS (dizziness, everytime I got up I felt like I was going to pass out), ASTHENIA (weakness, couldn't get out of bed), HEADACHE (pounding headache), VACCINATION SITE PAIN (injection site pain), FATIGUE (overwhelming tiredness/fatigue), ARTHRALGIA (joint pain), MYALGIA (muscle pain), CHILLS (chills), NAUSEA (nausea) and PYREXIA (low grade fever) had resolved. On 16-Apr-2021, PERIPHERAL SWELLING (the arm of injection on the top half from elbow to shoulder was swollen and hard), FEELING HOT (arm of injection hot) and RASH (arm of injection rash the size of her hand) had resolved. At the time of the report, RASH ERYTHEMATOUS (can't go outside for longer than 10mins or she breaks out in a red splotchy rash all over body), TEMPERATURE INTOLERANCE ("heat sensitivity") and LYMPHADENOPATHY (swollen lymph nodes in arm pits both sides) outcome was unknown.        mRNA-1273 (Unknown) was withdrawn on an unknown date.       Patient is advised not to get the second dose by her physician.   Most recent FOLLOW-UP information incorporated above includes: On 01-Jun-2021: Contact information updated and patient was advised not to get second dose. On 01-Jun-2021: Follow up received on 01-JUN-2021 does not contain any new information.