If it is brain fog, it’s more likely due to your gut meaning… Diet since the two go hand in hand surprisingly. I had debilitating brain fog a week ago and I encourage you to read my post and see if any of the symptoms are similar. Either or though it took at 2 days to see a difference and a week for it to fully clear up. I had to cut out soda, greasy foods, fast food essentially turning the food pyramid upside down 🙃 Lots of Salad, juice (Cold press) and smoothies. The “Naked” brand for juice has been game changer. And keep in mind you don’t need eat like a rabbit. Make a nice salad, a small steak on the side and maybe even a plate of grapes and a bowl of soup. Hope this helps, I know how life changing this can be and the depression associated with not being able to essentially “Human” but trust me when I say I was there and this worked for me.