Vertigo; post-nasal clog; sinus headache; thick feelling in head; fever; Muscle ache; Headache; nausea; chills; exhaustion; Stiffness; cold; hot; Felt like she had a bad flu; This spontaneous case was reported by a consumer and describes the occurrence of MUSCULOSKELETAL STIFFNESS (Stiffness), NASOPHARYNGITIS (cold), FEELING HOT (hot), INFLUENZA (Felt like she had a bad flu) and VERTIGO (Vertigo) in a 65-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 001B21A and 03M20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Previously administered products included for Product used for unknown indication: Erythromycin. Past adverse reactions to the above products included Vomiting with Erythromycin. Concurrent medical conditions included Allergy to molds, Allergy to feathers, Dust allergy, Allergy to antibiotic (Erythromycin), Irritable bowel syndrome (Started food map for possible Irritable bowel syndrome) since 01-Oct-2020, Sinus headache (20 years ago used to get sinus head aches,infections requiring antibiotics) and Sinus infection (20 years ago used to get sinus head aches,infections requiring antibiotics). Concomitant products included CALCIUM CARBONATE, VITAMIN D3 and MULTIVITAMINS [VITAMINS NOS] for an unknown indication.   On 13-Feb-2021 at 9:45 AM, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 14-Mar-2021 at 11:55 AM, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 14-Mar-2021, the patient experienced MUSCULOSKELETAL STIFFNESS (Stiffness), NASOPHARYNGITIS (cold), FEELING HOT (hot), INFLUENZA (Felt like she had a bad flu), HEAD DISCOMFORT (thick feelling in head), PYREXIA (fever), MYALGIA (Muscle ache), HEADACHE (Headache), NAUSEA (nausea), CHILLS (chills) and FATIGUE (exhaustion). On 17-Mar-2021, the patient experienced VERTIGO (Vertigo), SINUS CONGESTION (post-nasal clog) and SINUS HEADACHE (sinus headache). The patient was treated with PARACETAMOL (TYLENOL) on 15-Mar-2021 for Symptomatic treatment, at an unspecified dose and frequency. On 19-Mar-2021, HEAD DISCOMFORT (thick feelling in head), PYREXIA (fever), MYALGIA (Muscle ache), HEADACHE (Headache), CHILLS (chills) and FATIGUE (exhaustion) had resolved. On 22-Mar-2021, VERTIGO (Vertigo), SINUS CONGESTION (post-nasal clog) and SINUS HEADACHE (sinus headache) had resolved. At the time of the report, MUSCULOSKELETAL STIFFNESS (Stiffness), NASOPHARYNGITIS (cold), FEELING HOT (hot), INFLUENZA (Felt like she had a bad flu) and NAUSEA (nausea) outcome was unknown. Unknown          Patient used to  get sinus headache and sinus infections but it stopped about 20 years ago when avoided foods like cheddar cheese and drinks like beer, wine. Patient had started FODMAP for possible  IBS ON 01-OCT-2020, and  improved on this diet. The action taken for mRNA-1273 was not applicable.   Most recent FOLLOW-UP information incorporated above includes: On 24-May-2021: Follow up information was received and patient demographics, medical history, current illness, concomitant medications dosage information, outcome of the event were updated