For the most part, people have covered what to look for in terms of what you should feel. In the end, it doesn't matter what the doctor says. They are typically smart people, and I would never want to rob them of the time, energy, and commitment they have made to their profession and becoming a doctor. The reality, however, is that doctors are humans also and as much their opinion goes into curing someone as actual science and medicine does. Follow how you feel instead of what the doctor tells you. Of course, you should listen to your doctor, but ultimately you are looking to improve the quality of your life. If your levels are rising and you still aren't noticing a difference in terms of your emotions, energy level, and other areas of your life then I would recommend you start searching for other solutions.