pulse was 146,  Her heart was racing; has not yet received second dose of the series; so dizzy; could not even lift her head up from the couch and could not even get up; This spontaneous case was reported by a nurse (subsequently medically confirmed) and describes the occurrence of DIZZINESS (so dizzy), HYPOKINESIA (could not even lift her head up from the couch and could not even get up), PALPITATIONS (pulse was 146,  Her heart was racing) and INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (has not yet received second dose of the series) in a 62-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 040A21A) for COVID-19 vaccination.     Concurrent medical conditions included Vertigo. Concomitant products included Klonipin, NORTRIPTYLINE HYDROCHLORIDE (PAMELOR), VENLAFAXINE HYDROCHLORIDE (EFFEXOR), LINACLOTIDE (LINZESS), CALCIUM and COLECALCIFEROL (VITAMIN D [COLECALCIFEROL]) for an unknown indication.    On 16-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 16-Mar-2021, the patient experienced DIZZINESS (so dizzy) and HYPOKINESIA (could not even lift her head up from the couch and could not even get up). On 17-Mar-2021, the patient experienced PALPITATIONS (pulse was 146,  Her heart was racing) and INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (has not yet received second dose of the series). At the time of the report, DIZZINESS (so dizzy), HYPOKINESIA (could not even lift her head up from the couch and could not even get up), PALPITATIONS (pulse was 146,  Her heart was racing) and INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (has not yet received second dose of the series) was resolving.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 05-Mar-2021, COVID-19: positive positive (Positive) Positive. On 17-Mar-2021, Blood pressure measurement (120-80 mmHg): 65 mmHg (Low) 46. On 17-Mar-2021, COVID-19: positive. On 17-Mar-2021, Chest X-ray: normal (normal) Normal. On 17-Mar-2021, Computerised tomogram: normal (normal) Normal-no clots in the lungs.. On 17-Mar-2021, Fibrin D dimer: high (High) High. On 17-Mar-2021, Heart rate: high (High) 146.     mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosing remained unchanged.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   Treatment While in the emergency room (ER) she received 2 liters of intravenous (IV) fluid, had a bunch of labs performed, had a chest x-ray, and had a lung scan because her D-dimer was high. She had no clots in the lungs. Everything stabilized, no medicines were given while in the ER, and she went home that same day.  Everything stabilized, no medicines were given while in the ER, and she went home that same day.  She was not admitted to the hospital.  Since different doctors have told her differently, she today asks does Moderna think her symptoms are a side effect or an allergic reaction and does Moderna think she should get the second dose of the series, which she has not yet received.   A case reference number was provided, and the patient was referred to her HCP.  The patient who is also a retired nurse at first agreed to information in writing but later changed her mind, as she had no email or fax to provide.  The patient grants permission for Safety follow up via phone.  The patient grants permission for Safety follow up with her HCP.  During the call the patient mentioned she has been on disability for vertigo.  It is unclear if her history of vertigo was prior to the first dose.  After the call ended, an outbound call back attempt was made to clarify since when she has been on disability for vertigo relative to the date of her first dose, but the phone number provided rang as "off hook" without an ability to leave any voicemail.