Headaches when starting this WOE are quite common, Ramona. Here's a link from a few days ago; many people feel the same way you do.

Sounds like carb w/drawal and some electrolyte loss to me.

Make sure you're drinking your water and taking a good multi vitamin. Supplements like calcium and magnesium and some potassium would be a good idea as well.

Potassium you can get cheap in a product called "NuSalt". You take 1/8th teaspoon and mix it with a very large glass of water. This will give you 300+ mg of potassium. Do this 2x a day during Induction and once a day thereafter.

Mag/Cal you want in the same pill (ration 2:1, 333 mg calcium / 167 mg magnesium) take one with each meal and one an hour before bed. the RDA for calcium is 800 - 1500 mg and for Mag it's 400 - 500 mg. Be sure you get a chelated supplement as they are better absorped by the body.

Potassium will aide with fatigue / dizziness / headache and Magnesium will help with muscle cramping which often accompanies LCing. Magnesium before bed will also greatly increase the quality of sleep.

Nat