Sinus congestion; Extreme pain in both of my knees/bilnt knee pain; This spontaneous case was reported by a consumer and describes the occurrence of SINUS CONGESTION (Sinus congestion) and ARTHRALGIA (Extreme pain in both of my knees/bilnt knee pain) in a 32-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 022C21A and 039B21A) for COVID-19 vaccination.     The patient's past medical history included C-section (Caesarean delivery) in 2017, Cholecystectomy in 2003, Surgery (Abscess reconstruction surgery) and Stent placement (Kidney stent) in 2014. Concurrent medical conditions included Allergic rhinitis, Chronic back pain, Degenerative disc disease, Depression, Fibromyalgia, Generalized anxiety disorder, Headache, Insomnia, Degenerative disc disease, Herniated disc, Systemic lupus erythematosis, Migraine headache, Major depression (Moderate recurrent major depression), Morbid obesity, Spondylolisthesis (Lumbar region), Tobacco user (Smoking tobacco use of 4 or less cigarettes per day in last 30 days.), Drug allergy (Allergic to Reglan (Palpitation)) and Food allergy (Allergic to Aspertame/Nutrasweet (Vomiting, Migraine)). Concomitant products included SERTRALINE HYDROCHLORIDE (ZOLOFT) for Anxiety and Depression, VITAMIN B COMPLEX for Supplementation therapy, TRAZODONE and DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) for an unknown indication.   On 09-Apr-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 13-May-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 05-Jun-2021, the patient experienced ARTHRALGIA (Extreme pain in both of my knees/bilnt knee pain). On an unknown date, the patient experienced SINUS CONGESTION (Sinus congestion). The patient was treated with DIPHENHYDRAMINE HYDROCHLORIDE, PARACETAMOL (TYLENOL PM) (oral) ongoing since an unknown date for Pain, at a dose of 1 Tab; METHYLPREDNISOLONE (MEDROL DOSEPAK) (oral) at a dose of 4 mg; AMOXICILLIN SODIUM, CLAVULANATE POTASSIUM (AUGMENTIN [AMOXICILLIN SODIUM;CLAVULANATE POTASSIUM]) at a dose of 875mg-125mg and BUPROPION HYDROCHLORIDE (WELLBUTRIN XL) (oral) at a dose of 150 mg,every 24 hours. At the time of the report, SINUS CONGESTION (Sinus congestion) and ARTHRALGIA (Extreme pain in both of my knees/bilnt knee pain) had not resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, X-ray: bilateral effusion (abnormal) Suspect rheumatologic etiology,doubt infectious..     For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   Concomitant medication including Iron 365 (1 tablet, per oral) as supplement was reported.   This case was linked to MOD-2021-243167 (Patient Link).   Most recent FOLLOW-UP information incorporated above includes: On 04-Aug-2021: Additional information include patient demographic details (height, weight, race and ethnic group), relevant history (current condition, procedure, allergies), Laboratory investigation (X-ray), batch number details of 1st and 2nd dose, treatment medication were added. Information of event outcome and emergency visit for bilateral knee pain updated and newevent was added (sinus congestion).