hi, it's 2 days later since you made your post. Did you make it?
. In the first 3 days of the cleanse, you can take ibuprofen and you'd be fine. I say it's a better alternative then giving up because those headaches are awful.
Also, when head hurts a lot, drink more water. And then some more.
Hope that helps.
And don't forget to take the morning salt water drinks - that's just as important as drinking the lem juice. This diet is totally worth it. I also encourage you take organic maple syrup, as the book describes. I took agave and now finding out that agave is very processed, even when it says it's organic.