I am asking because my doctor is telling me the last 3 test of mine showed nothing in my urine so she is going to stop prescribing it to me. I am only on 4mg anyway but I do take it everyday. I just don't understand how this can happen & I don't like her looking at me like I'm lying. I'm going to video myself taking it to prove it I don't know how else to do it. Help , PLEASE