This is a poignant reminder of something awful a close relative said to me while she was undergoing cancer treatments. She talked about how she had an aggressive form of cancer, surgery, chemo and radiation. Between the four, she never knew whether something was a symptom of getting worse, a side effect of treatment or just one of the weird things that bodies do. The part I still find troubling is that she said that after a certain point, she realized her doctors weren't sure either.