"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."
Source: https://www.yalemedicine.org/news/long-covid-symptoms-internal-tremors-and-vibrations
New study: https://www.sciencedirect.com/science/article/pii/S0002934324004704?via%3Dihub#bib0018