Yes, the book I mentioned in the original post is by Eenfeldt. It does mention side effects but could be more thorough in its treatment of them. I went to the diet site and see that high blood pressure and meds is an issue to deal with. I'm on a low dose of blood pressure meds.
I ate a bunch of carbs and some salt yesterday evening and am feeling better. I will probably be going liberal in the amount of carbs I eat daily. No more sugar though, I'm finished with that stuff! I had read stories of people eating almost no carbs with great benefit so was trying it out. Things are more complicated than some books and YouTube make them appear.
Thanks for responses.