Heart was raising all the time, doctor thought it maybe stress but turns out supraventricular tachycardia; Hard muscle cramping and gets stuck out of blue; very sick for about 4-5 days / got sick after the first shot; possible stomach upset/bug; during the call, sniffled her nose stating its allergy season in her place; there's gooey in her head; Condition aggravated; fever and gotten worse; bad chills; This spontaneous case was reported by a consumer and describes the occurrence of SUPRAVENTRICULAR TACHYCARDIA (Heart was raising all the time, doctor thought it maybe stress but turns out supraventricular tachycardia), MUSCLE SPASMS (Hard muscle cramping and gets stuck out of blue), ILLNESS (very sick for about 4-5 days / got sick after the first shot), ABDOMINAL DISCOMFORT (possible stomach upset/bug) and RHINORRHOEA (during the call, sniffled her nose stating its allergy season in her place) in a 55-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.    Co-suspect product included non-company product TERIFLUNOMIDE for Multiple sclerosis.    Concurrent medical conditions included Food allergy (Tree nuts.) and Multiple sclerosis.   On 04-Oct-2017, the patient started TERIFLUNOMIDE (Oral) 14 mg once a day. On an unknown date, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On an unknown date, the patient experienced SUPRAVENTRICULAR TACHYCARDIA (Heart was raising all the time, doctor thought it maybe stress but turns out supraventricular tachycardia), MUSCLE SPASMS (Hard muscle cramping and gets stuck out of blue), ILLNESS (very sick for about 4-5 days / got sick after the first shot), ABDOMINAL DISCOMFORT (possible stomach upset/bug), RHINORRHOEA (during the call, sniffled her nose stating its allergy season in her place), UNEVALUABLE EVENT (there's gooey in her head), CONDITION AGGRAVATED (Condition aggravated), PYREXIA (fever and gotten worse) and CHILLS (bad chills). The patient was treated with METOPROLOL for Supraventricular tachycardia, at a dose of UNK dosage form and GUAIFENESIN for Rhinorrhoea and Unevaluable event, at a dose of UNK dosage form. At the time of the report, SUPRAVENTRICULAR TACHYCARDIA (Heart was raising all the time, doctor thought it maybe stress but turns out supraventricular tachycardia) had resolved and MUSCLE SPASMS (Hard muscle cramping and gets stuck out of blue), ILLNESS (very sick for about 4-5 days / got sick after the first shot), ABDOMINAL DISCOMFORT (possible stomach upset/bug), RHINORRHOEA (during the call, sniffled her nose stating its allergy season in her place), UNEVALUABLE EVENT (there's gooey in her head), CONDITION AGGRAVATED (Condition aggravated), PYREXIA (fever and gotten worse) and CHILLS (bad chills) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In 2021, Laboratory test: abnormal (abnormal) Tachycardia. In 2021, Thyroid function test: normal (normal) thyroid came back okay.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.       The patient had been diagnosed with tachycardia since Teriflunomide, but she  believes she was having it prior to starting Teriflunomide but  she saw cardiologist and got diagnosis this past Dec 2020.   Reporter causality was not reported for all events.  Company causality was not reportable for all events.   Most recent FOLLOW-UP information incorporated above includes: On 09-Jun-2021: Significant follow up appended to AER