Re: the pain is unbearable

No, this is NOT normal. Your diet is too limited. You need some solid protein (eggs - see protein shake) and essential fatty acids. You also need fermented foods such as kefir and yogurt, or simply take live acidophilus supplements. Be sure to supplement with EmergenC, cod liver oil, and CalMagFizz.

You're getting way too much phosphorous in your diet. Avoid cabbage and other veggies that are high in phosphorous. Avoid higly acidic foods, citrus, for a couple weeks. Visit the USDA site for a list of foods high in phosphorous.

http://www.nal.usda.gov/fnic/foodcomp/Data/SR17/wtrank/wt_rank.html