Anxiety about disease.

To handle anxiety about being diagnosed with an illness, find out as much as you can about it. Become an expert on your own illness. Try to learn as much or more about it then your doctor does. Learn to monitor yourself for signs that it is getting better or worse so that you can report these to your doctor. You may not be able to be in control of everything but the more you know the more in control you can be of your own health.