Hold onto walls to walk; Tight neck; Mild dizziness; Nausea; Feel worse, cannot exercise; benign paroxysmal vertigo in left ear; Room was spinning; couldn't get up; fatigue; chills; fever; vomited all night/Vomiting triggered; Massive headache; achy all over; This spontaneous case was reported by a consumer and describes the occurrence of GAIT DISTURBANCE (Hold onto walls to walk), MUSCLE TIGHTNESS (Tight neck), VERTIGO (Room was spinning), VERTIGO POSITIONAL (benign paroxysmal vertigo in left ear) and ASTHENIA (Feel worse, cannot exercise) in a 56-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 024M20A and 027L20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concurrent medical conditions included BPPV since 18-Feb-2021.   On 14-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 10-Feb-2021 at 11:00 AM, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 10-Feb-2021,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced HEADACHE (Massive headache) and MYALGIA (achy all over). On 10-Feb-2021 at 6:00 PM, the patient experienced CHILLS (chills) and PYREXIA (fever). 10-Feb-2021 at 6:00 PM, the patient experienced VOMITING (vomited all night/Vomiting triggered). On 11-Feb-2021, the patient experienced FATIGUE (couldn't get up; fatigue). On 11-Feb-2021 at 6:00 AM, the patient experienced VERTIGO (Room was spinning). On 18-Feb-2021, the patient experienced VERTIGO POSITIONAL (benign paroxysmal vertigo in left ear). On 19-Feb-2021, the patient experienced ASTHENIA (Feel worse, cannot exercise). On an unknown date, the patient experienced GAIT DISTURBANCE (Hold onto walls to walk), MUSCLE TIGHTNESS (Tight neck), DIZZINESS (Mild dizziness) and NAUSEA (Nausea). The patient was treated with PARACETAMOL (TYLENOL) for Fever and Headache, at a dose of 1 dosage form; MECLOZINE HYDROCHLORIDE (BONINE) on 11-Feb-2021 for Vomiting, at a dose of 1 dosage form; METHYLPREDNISOLONE on 13-Apr-2021 for Vertigo, at an unspecified dose and frequency; Physical therapy for Gait disturbance; Physical therapy for Vertigo; Physical therapy (Epley manuever) for Vertigo positional and Physical therapy for Dizziness. On 12-Feb-2021, CHILLS (chills), MYALGIA (achy all over), PYREXIA (fever) and VOMITING (vomited all night/Vomiting triggered) had resolved. On 15-Apr-2021, VERTIGO (Room was spinning) had resolved with sequelae. At the time of the report, GAIT DISTURBANCE (Hold onto walls to walk) had resolved, MUSCLE TIGHTNESS (Tight neck), DIZZINESS (Mild dizziness), HEADACHE (Massive headache) and NAUSEA (Nausea) had not resolved and VERTIGO POSITIONAL (benign paroxysmal vertigo in left ear), ASTHENIA (Feel worse, cannot exercise) and FATIGUE (couldn't get up; fatigue) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 10-Feb-2021, Body temperature: 101-101.5 (High) 101-101.5 Fahrenheit.         No concomitant medications were reported. Source documents contain NNI   Most recent FOLLOW-UP information incorporated above includes: On 01-Jul-2021: Follow-up information received on 01-JUL-2021 contains address, Patient demographics, First dose information, Second dose batch no, Treatment for vertigo, Adverse events outcome updated. On 22-Jul-2021: NNI