Dangers of drinking sodium chloride health product?

I recently tried a health product and had horrible side effects, blurry vision, shivering ,headache, unable to stabilize blood sugar levels, labored breathing, kidney pain and anxiety. The product contains only distilled water and sodium chloride, so in short...salt water, but it tastes like pool water. I only had two tablespoons at a time once a day, what could possibly be the problem? I feel horrible and not the detox type of horrible.