This very accurately describes what I've been having for some time. Got laughed out of the room by a few doctors. Tests didn't find anything wrong other than an

This very accurately describes what I've been having for some time. Got laughed out of the room by a few doctors. Tests didn't find anything wrong other than an arachnoid cyst in the brain (occurs in about 1% of population, effects vary). Ultimately, fixed it by: 1) Having a glass of water before going to bed. Having another glass at night when I wake up to pee the first one out. 2) Spending 1-2 hours before sleep time gradually relaxing. No work/exercise for 2 hours before sleeping. Minimal activity for the last 1 hour. Mostly, browsing or watching something on YouTube. Works like a charm altogether.