For 3 years, I would get chronic headaches and feel cloudy, and not function if hungry. I looked healthy on the outside but felt like melted goo on the inside. I self diagnosed myself as reactive hypoglycemic and finally had it verified by the doctor. I now feel amazing 24-7 and have even lost 10 pounds in two months. I think all people should do keto because this diet results in mostly all natural paleo based foods, good for our brain and digestive tract. Our bodies are adapted to eat meat, plants, and fats, not sugar and carbs. Try out this diet and I promise you you’ll feel better and lose weight.
To start clear out your cabinet and fridge that has anything more than 10g of carbs per serving. Find out your diet goals here http://keto-calculator.ankerl.com/
Then go shopping with this food pyramid in mind: http://ketodietapp.com/Blog/post/2015/11/19/ketogenic-food-pyramid
Then exercise at least 2 times per week, and buy a scale.
Next be careful eating out, hidden carbs are in lots of foods.
Good luck and keep it keto!