Check out what I responded to josh’s blog post.
My brain fog is caused because of food. But besides that there are a lot of conditions that can cause it:
You have to find out which one is causing yours. If you suspect something, then go to your GP and tell her about it. If you strongly suspect sth but your GP won’t listen, then there are places that do tests for money. E.g. my food intolerance was discovered by some controversial blood test (which wasn’t very accurate) in an alternative medicine clinic, but it helped me in the right direction after being diagnosed with “Irritable bowel syndrome” by gastroenterologists (in my case they were too lazy to do additional tests like colonoscopy or endoscopy).
Some things you can first experiment with yourself (food, stress, sleep time etc).
I wish you luck, because it is a really disturbing condition (what’s the point of life when you can’t feel it). I am doing everything to overcome mine completely (right now I’m having periods of symptoms), and be able to do normal things without effort.
My symptoms were the reason I started researching mnemotechnics. In the 11th class I figured that if I used mnemotechnics, then I could somehow still scramble through university even if the symptoms still persist then. Well, it isn’t that easy. Although they really do help A LOT, they can only be efficiently used if I have clear consciousness.
The problem is that with foggy mind understandomg physics is hard, visualizing is hard, and most off all - doing it doesn’t offer any pleasure. Even playing video games or if i’m especially tired then enjoying a movie takes effort. No point to talk about enjoying studying/mnemotechnics.
So, the only real solution is to effectively use periods between the foggyness, and try to prolong these periods.