yesterday was my first day of induction and went all day without coffee or diet coke. Which before I would have had 3 or 4 cups of coffee, and two diet cokes throughout the day. I had such a headache at noon and it only got worse, but I stuck to it and stayed away. By night time my headache was even worse and the fatigue...I couldn't even move. I was in bed by 9:00 last night. Please tell me if I can have at least one cup of coffee in the morning. How much damage will it do on induction? I did the ketostix twice yesterday and I am at the second one to the last. Almost dark purple. OH yea, I did take an aleve and two advil yesteday, but nothing worked. If I can cut back on something else and drink coffee will that help? I jsut dont want to mess this up, I am doing so well, and if coffee is THAT bad then I wont drink it, but I cant go on with the headaches. I usually have headaches on a daily basis anyway, which I am getting checked out next week, but this headache was BAD! Thank You!