This spontaneous case was reported by a patient and describes the occurrence of NASOPHARYNGITIS (went out cold for 7 hours), HYPERHIDROSIS (sweating), CONCUSSION (felt like having a concussion and sea sickness at the same time), BALANCE DISORDER (felt like having balance issues) and SOMNOLENCE (Patient reports normally sleeps 3 hours but slept for 7 hours on 4May2021 and then 11 hours the next day) in a 60-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 014C21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below. The patient's past medical history included Surgery ( cranial surgery to remove pineal gland.) in 2003. Concomitant products included EZETIMIBE (ZETIA) for Cholesterol, DONEPEZIL for Dementia, BUPROPION HCL and IBUPROFEN for Headache, PROPRANOLOL for Heart disorder. On 04-May-2021 at 3:00 PM, the patient received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 04-May-2021, the patient experienced NASOPHARYNGITIS (went out cold for 7 hours), FATIGUE (feeling tired) and VACCINATION SITE PAIN (injection site was very painful). On 05-May-2021, the patient experienced HYPERHIDROSIS (sweating), CONCUSSION (felt like having a concussion and sea sickness at the same time), BALANCE DISORDER (felt like having balance issues), SOMNOLENCE (Patient reports normally sleeps 3 hours but slept for 7 hours on 4May2021 and then 11 hours the next day), ASTHENIA (losing stamina in legs), TREMOR (legs start to shake), DIZZINESS (dizzy while walking), BLOOD PRESSURE INCREASED (increase in blood pressure), HEART RATE INCREASED (heart rate increased), HYPERVENTILATION (hyperventilation), EAR DISCOMFORT (felt like a ping pong ball was going back and forth in ear,), TINNITUS (could hear something rushing through ear.), PYREXIA (fever of 101.2) and HEADACHE (global headache). On an unknown date, the patient experienced CHILLS (Chills). At the time of the report, NASOPHARYNGITIS (went out cold for 7 hours), HYPERHIDROSIS (sweating), CONCUSSION (felt like having a concussion and sea sickness at the same time), BALANCE DISORDER (felt like having balance issues), SOMNOLENCE (Patient reports normally sleeps 3 hours but slept for 7 hours on 4May2021 and then 11 hours the next day), ASTHENIA (losing stamina in legs), TREMOR (legs start to shake), DIZZINESS (dizzy while walking), BLOOD PRESSURE INCREASED (increase in blood pressure), HEART RATE INCREASED (heart rate increased), HYPERVENTILATION (hyperventilation), EAR DISCOMFORT (felt like a ping pong ball was going back and forth in ear,), TINNITUS (could hear something rushing through ear.), FATIGUE (feeling tired), VACCINATION SITE PAIN (injection site was very painful), PYREXIA (fever of 101.2), HEADACHE (global headache) and CHILLS (Chills) outcome was unknown. DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 05-May-2021, Blood pressure measurement: 135/95 mmHg Inconclusive. On 05-May-2021, Heart rate: 105bpm Inconclusive. On 05-May-2021, Pyrexia: 101.2 Inconclusive. For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.