“Most people associate symptoms such as shaking or trembling movements with neuromuscular diseases, such as Parkinson’s disease—but now, some Long COVID patients have reported experiencing internal tremors and vibrations. These are described as movements or sensations inside the body, with or without visible external muscle movement—a symptom previously undiscovered in the complex pathology of the illness and quite rare in and of itself.”

https://www.yalemedicine.org/n....ews/long-covid-sympt