#disturbance

• Shaking — The act of agitating and its result; the physical process of mixing or intensely shaking a medium, or a psychological state of deep unrest, disturbance, nervousness, and anxiety. In a structural and technical sense, it represents the process of homogenizing fluids in a laboratory, and in a social sense, the act of instigation or active political propaganda.
• Asteropsia — A rare visual perception disorder or subjective optical phenomenon where a patient perceives luminous spots, sparks, or star-shaped radiating reflections within the visual field; it typically occurs due to ocular strain, vascular retinal conditions, or as a transient neurological manifestation during migraine episodes with aura.