Be more specific. EDIT: Answering these questions will help you help yourself. I don't necessarily have any guidance to offer, specifically, but you should coll

Be more specific. EDIT: Answering these questions will help you help yourself. I don't necessarily have any guidance to offer, specifically, but you should collect this information until it reveals something or nothing, and log that along with what you've already logged. IANAD but you knew that posting to HN. What vitamins have you tried, at what dosages? Does caffeine have any effect on you whatsoever? If you drink a cup of tea right before bed, do you lose a night of sleep? What habitual pattern did you maintain with 'exercise' and 'meditation' and for how long? How soon during the day do you know it'll be an energy or a foggy day? Can you read fiction on the foggy days? Non-fiction? Arxiv papers? Do you consume added sugar in your everyday diet? Artificial sweeteners? "0g sugar, 20g fruit juice sugars" sweeteners (I'm looking at you, Whole Foods)? Do you drink sweetened soda – sugar, fructose, glucose, fruit juice, all artificial sweeteners, cactus juice, what the fuck ever is new this year? (If so, stop. Quit smoking cigarettes, stop drinking diluted sweetener, and get some exercise, or else you'll die of problems worse than feeling foggy!) Do you snooze your alarm? Have you researched the ebb and flow of cortisol throughout the day, beginning at wakeup? What happens if you drink a half cup of 100% fruit juice (NOT orange, pineapple, or papaya!) the instant your eyes open? How does a steak breakfast make you feel for the rest of the day? Or a steak dinner, the next morning? Do you eat one large meal, two small meals, and some snacks each day? Do you eat around the same time every day? Do you eat every day at all? Do you suffer weird problems that could be loosely classified as 'inflamed' or similar? Allergies, recurring ear-nose-threat issues, joint or muscle issues, etc.