Hello, Thank you for your query. This could be due to an improper sleep position or if you were too tired or stressed out, even if you snore and don t get restful sleep. Sometimes this kind of symptoms occur when you are about fall sick Don t worry if this is a one time occurrence. If it occurs frequently, I recommend -a physician consult to check for any neurological deficits - a sleep study -blood tests (complete blood count, lipid profile, sugar levels, thyroid tests, kidney and liver function) -a CT scan of the brain if required If any new symptoms develop, get back to us. Hope this helps. Stay well hydrated and rested. Please let me know if there is anything else I can help you with. Wish you good health