A few months ago I had the same kind of symptoms. I had been having a BAS every day for lunch with baby spinach as my greens. I had to cut back on the spinach because I think it was the extra calcium and my kidney's were overworked. I didn't have a kidney stone or an infection. I just changed up my salad greens and I was all better. Not sure if this is exactly what is happening to you, but it could be similar.