Got chest pains when she went to the store; Low sodium; Heart rate high; Had no energy; Tired; Got a migraine; Fever; This spontaneous case was reported by a consumer and describes the occurrence of CHEST PAIN (Got chest pains when she went to the store), BLOOD SODIUM DECREASED (Low sodium) and HEART RATE INCREASED (Heart rate high) in a 52-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 050C21A and 004C21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No medical history information was provided.  Concomitant products included LORAZEPAM for an unknown indication.   On 12-May-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 11-Jun-2021 at 11:00 AM, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 12-Jun-2021, the patient experienced CHEST PAIN (Got chest pains when she went to the store) (seriousness criterion hospitalization), BLOOD SODIUM DECREASED (Low sodium) (seriousness criterion hospitalization) and HEART RATE INCREASED (Heart rate high) (seriousness criterion hospitalization). 12-Jun-2021, the patient experienced PYREXIA (Fever). On 12-Jun-2021 at 5:00 AM, the patient experienced MIGRAINE (Got a migraine). On 14-Jun-2021, the patient experienced ASTHENIA (Had no energy) and FATIGUE (Tired). The patient was hospitalized from 12-Jun-2021 to 13-Jun-2021 due to BLOOD SODIUM DECREASED, CHEST PAIN and HEART RATE INCREASED. The patient was treated with IBUPROFEN (ADVIL [IBUPROFEN]) on 12-Jun-2021 for Migraine, at an unspecified dose and frequency. On 12-Jun-2021, MIGRAINE (Got a migraine) had resolved. On 13-Jun-2021, CHEST PAIN (Got chest pains when she went to the store) and PYREXIA (Fever) had resolved. At the time of the report, BLOOD SODIUM DECREASED (Low sodium), HEART RATE INCREASED (Heart rate high), ASTHENIA (Had no energy) and FATIGUE (Tired) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 12-Jun-2021, Blood sodium: low (Low) Dangerously low in sodium level was reported. On 12-Jun-2021, Blood test: inconclusive (Inconclusive) Results were not reported. On 12-Jun-2021, Computerised tomogram: inconclusive (Inconclusive) Results were not reported. On 12-Jun-2021, Electrocardiogram: inconclusive (Inconclusive) Results were not reported. On 12-Jun-2021, Heart rate: high (High) Extremely high heart rate was reported.         The patient had a bad reaction to her second shot. Patient was admitted to the hospital on night of 13 Jun 2021. At 12 Jun 2021 5 AM, patient got a migraine and took an Advil. Patient states she doesn't normally get headaches. Patient started feeling better, but then got chest pains when she went to the store around 12 or 1 o'clock, which was almost 24 hours later. It was really scary for her, so she went to the hospital. They did EKG, CAT scan and blood tests. Patient was admitted because she was dangerously low in her sodium level and her heart rate was extremely high. On 12 Jun 2021 night, she had a fever. A day later, her chest pain stopped. The patient states she takes lorazepam every night, but did not get new medications from her hospital visit. Patient states she was tired and has no energy on 14 Jun 2021. It's rare for her to take a nap during the day.  Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded.; Sender's Comments: Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded.