Question: One week ago I completed a 21 day "Cleanse" based on the book Clean by XXXXXXX Junger. I finished the class, but didn't actually start reintroducing non-cleanse foods when this started happening. This was basically an elimination diet removing gluten, dairy, eggs, caffiene, red meat, pork, night shade vegetables, oranges, bananas...eating a smoothie for breakfast, snacks and lunch during the day, and a blended soup at night. All made with fresh whole foods, lots of food to eat. I did eat meat during this cleanse - chicken/turkey/fish. Upon completing the program I was feeling AMAZING, best I've ever felt in my life. However, for almost one week SINCE then, I have experienced extreme fatigue, feeling low to mid back pain/nauseous/headache after eating (but not every single meal), which improves after about 1-2 hours. Some episodes have been severe where I had to lay down and I considered going to the ER, others were tolerable where I could still sit and do my job. The most severe instance was when I drank fresh pineapple juice, the pain was very severe. I am also ALWAYS thirsty. I'm drinking well over a gallon of water daily, but still feel dry mouth/thirst. Went to the doctor, tested for liver/gallbladder/pancreas issues, everything came back within normal range. I am also not anemic. Prior to this hitting I was feeling SO good, full of energy and well. Now I feel terrible. My primary care doc is at a loss; is referring me to a GI specialist, but I'd rather not be poked and prodded unnecessarily if someone has ever heard of this before and can provide some guidance as to what might be causing this. I am F, 38, 5'8 138 lbs, eat a well rounded healthy diet full of fresh veggies, fruits/chicken/turkey/fish/eggs/beans/grains (mostly organic), drink fresh spring water from a local spring, and before this was in very good health, walking daily, and doing hot yoga 3+ days a week. Please advise.

Thank you for your detailed answer and the directive to check with an Endocrinologist and to have my kidneys evaluated. Makes total sense that my body has not adjusted to the new diet, although I find it very strange that I was feeling so great on it up until the symptoms started last week. One thing I realized yesterday (did not realize this during my initial message) is my thirst has significantly increased over the past week as well; normally I drink water often, but I've been drinking more than a gallon + a day, feeling thirsty and dry mouth all the time. Urine is almost clear; no issues with going. I would call bowels "normal" - I'm going about 3-4 times a day, soft but not loose, light in color, I would say pretty healthy in that area. Sleep was signifiantly improved during the cleanse. Whereas I used to have difficulty falling asleep and staying there PRIOR to the cleanse, during the cleanse I was falling asleep easily, staying there and waking up refreshed. Since the symptoms started, I've been having disrupted sleep and waking up feeling tired and worn out. No temperature. I do have a history of low blood pressure, but during the episodes (my husband took my BP -he is a phlebotomist), it did drop during those times to 90/60 at one point, 86/60 another. HR was about 64 resting at those times. Normal BP for me is in the 105/84 range. Others in the group have not had any similar experiences; I did reach out to the "Clean" online support community for insight but have not heard back yet. If you have any further ideas after reviewing the additional information, please let me know.