lose all muscle control in arms, legs; loose of control bladder; lots of sleeping most of the day; dizzy; fever; chills; nausea; terrific headache; loss of appetite; redness and lump on my arm are flaming; redness and lump on my arm are flaming; This spontaneous case was reported by a patient and describes the occurrence of MUSCULAR WEAKNESS (lose all muscle control in arms, legs), URINARY INCONTINENCE (loose of control bladder), HYPERSOMNIA (lots of sleeping most of the day), LIMB MASS (redness and lump on my arm are flaming) and DECREASED APPETITE (loss of appetite) in a 74-year-old patient of an unknown gender who received SPIKEVAX NOS (SPIKEVAX NOS) for COVID-19 prophylaxis. The occurrence of additional non-serious events is detailed below. Concomitant products included Levothyroxine sodium, Rosuvastatin calcium (Rosuvastatin) and Ezetimibe for an unknown indication. On an unknown date, the patient received dose of SPIKEVAX NOS (SPIKEVAX NOS) (unknown route) 1 dosage form. On 23-Nov-2024, the patient experienced LIMB MASS (redness and lump on my arm are flaming) and ERYTHEMA (redness and lump on my arm are flaming). On an unknown date, the patient experienced MUSCULAR WEAKNESS (lose all muscle control in arms, legs), URINARY INCONTINENCE (loose of control bladder), HYPERSOMNIA (lots of sleeping most of the day), DECREASED APPETITE (loss of appetite), DIZZINESS (dizzy), PYREXIA (fever), CHILLS (chills), NAUSEA (nausea) and HEADACHE (terrific headache). At the time of the report, MUSCULAR WEAKNESS (lose all muscle control in arms, legs), URINARY INCONTINENCE (loose of control bladder), HYPERSOMNIA (lots of sleeping most of the day), LIMB MASS (redness and lump on my arm are flaming), DECREASED APPETITE (loss of appetite), ERYTHEMA (redness and lump on my arm are flaming), DIZZINESS (dizzy), PYREXIA (fever), CHILLS (chills), NAUSEA (nausea) and HEADACHE (terrific headache) had not resolved. Patient had received Moderna Covid vaccines and their booster doses every year since their availability. Patient had reactions to vaccine which caused patient to be bedridden for a few days. Patient had reactions which included losing all muscle control in arms, legs, and bladder; lots of sleeping most of the day; fever, chills, nausea, dizzy, terrific headache, and loss of appetite. It was like a nightmare for the patient. Since 23-Nov-2024, the patient had redness and lump on the arm. It was reported that patient researched online for side affects, but could not find anything close to what patient continued to experience. Treatment medication was not reported. Most recent FOLLOW-UP information incorporated above includes: On 09-Dec-2024: Live non-significant follow up received with no new information. On 17-Dec-2024: Live non-significant follow up received with no new information.; Reporter’s Comments: The benefit-risk relationship of the product is not affected by this report.