Dealing with cancer was right up there with my husband's mental illness.....I really found out who my friends were! I learned to just put aside acomment's like "why did he get crazy?" and my favorites about breast cancer, " Oh! It must have been easy for you, you're a nurse!" and " Who found it?" People do seem so insensitive at these times, but , truly, it is simply awkwardness out of good intention. It taught me a valuable lesson, and that was to anticipate their anxiety, and ask, "Do you have any questions I may be able to answer?" and use the opportunity to teach. Trust me, it turns and awkward monent into a win, win solution. It also leaves a more trusting opening for your next encounter. If you just don't want to entertain these people, just say, " Gosh, I'm just not feeling well today, you know, treatments and all....maybe another a time." Then ask, "And, how are YOU?" Hang in there, it will get better, I promise!"