Fatigued/ felt wiped out for the rest of the day, like after an anesthesia; Weird swallowing/ swallowing took more effort/ Difficulty swallowing; chest discomfort; Raised heartbeat/ Tachycardia; Palpitations; Pharyngeal hypoaesthesia; This spontaneous case was reported by a consumer and describes the occurrence of TACHYCARDIA (Raised heartbeat/ Tachycardia), PALPITATIONS (Palpitations), CHEST DISCOMFORT (chest discomfort), DYSPHAGIA (Weird swallowing/ swallowing took more effort/ Difficulty swallowing) and PHARYNGEAL HYPOAESTHESIA (Pharyngeal hypoaesthesia) in a 51-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 03LA21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Bee sting (loss of consciousness? (fell asleep and only woke up 21 hours later)) in 1989. Concurrent medical conditions included Asthma, Allergy to antibiotic (hives), Allergy to plants (seasonal allergies) since 1974, Vegetable allergy (Tomato (swelling of lips, itchy throat, trouble breathing)) since April 1992, Lymphocytic colitis since October 2014, Celiac disease since October 2014, Vegetable allergy (Carrots (swelling of lips, itchy throat, trouble breathing)) since April 1992, Vegetable allergy (Celery (swelling of lips, itchy throat, trouble breathing)) since April 1992, Soy allergy (swelling of lips, itchy throat, trouble breathing) since April 1992, Allergy to nuts (swelling of lips, itchy throat, trouble breathing) since April 1992, Allergy to plants (Sesame (swelling of lips, itchy throat, trouble breathing)) since April 1992, Allergy to antibiotic (GI), Allergy to antibiotic (GI), Allergy to antibiotic (rash + flu-like symptoms), Drug allergy (tachycardia), Grass allergy (seasonal allergies) since 1974, Mite allergy (seasonal allergies) since 1974 and Allergy to molds (seasonal allergies) since 1974. Concomitant products included MAGNESIUM GLYCINATE and VITAMIN D3 for an unknown indication.    On 17-Mar-2021 at 9:00 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 17-Mar-2021, the patient experienced PHARYNGEAL HYPOAESTHESIA (Pharyngeal hypoaesthesia). On 17-Mar-2021 at 9:02 AM, the patient experienced TACHYCARDIA (Raised heartbeat/ Tachycardia) and PALPITATIONS (Palpitations). On 17-Mar-2021 at 9:15 AM, the patient experienced CHEST DISCOMFORT (chest discomfort). On 17-Mar-2021 at 10:20 AM, the patient experienced DYSPHAGIA (Weird swallowing/ swallowing took more effort/ Difficulty swallowing). On 17-Mar-2021 at 11:00 AM, the patient experienced FATIGUE (Fatigued/ felt wiped out for the rest of the day, like after an anesthesia). On 17-Mar-2021 at 3:00 PM, TACHYCARDIA (Raised heartbeat/ Tachycardia), PALPITATIONS (Palpitations), CHEST DISCOMFORT (chest discomfort), DYSPHAGIA (Weird swallowing/ swallowing took more effort/ Difficulty swallowing) and PHARYNGEAL HYPOAESTHESIA (Pharyngeal hypoaesthesia) had resolved. On 18-Mar-2021, FATIGUE (Fatigued/ felt wiped out for the rest of the day, like after an anesthesia) had resolved. Not Provided    DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 17-Mar-2021, Heart rate: 156-160 heart beats per minute (High) 9:02 a.m., 150 heart beats per minute (High) 9:20 a.m., 140 heart beats per minute (High) 9:30 a.m., 120 heart beats per minute (High) 9:40 a.m, 100 heart beats per minute (High) 9:50 a.m and 90 heart beats per minute (Inconclusive) 10:02 a.m..     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       It was reported that on 17-Mar-2021, the patient experienced sudden onset of tachycardia (156-160 bpm) as well as palpitation within 2 mins of receiving the vaccine which was reported to the staff. On 9:15 a.m. the patient had feeling warmth, especially in the chest area (reported to staff, was told to wait 15 more minutes). The patient left the vaccination site at 10:02 a.m. Reportedly, the events did not cause the patient to seek medical care. The patient felt normal on next day.   Most recent FOLLOW-UP information incorporated above includes: On 18-May-2021: Additional information received included medical history, concomitant medications and additional details of the events and new events.