Low energy and brain fog...

You might need more protein . You could be low on potassium or certain vitamins. An organic diet is the best because there are no toxins or chemicals in the food. However it can be pricey. Stay away from carbs and meat. Try healthy alternatives.

I don´t know. If you find out, let me know.

Yes. ..d Coffee and red bull diet

Read up on adrenal deficiency.

try keto, it helps me.