complain away

On Sunday I saw an old friend she had a wrap on her head, only means one thing cancer.  I went up to her gave her a hug and asked what was going on. She stated that she had breast cancer, but she wasn't complaining. I told her complain away that totally sucks. Why do we always think that we can't complain or we just don't. I complain I get mad, but I guess when it's just me is when that happens. I really felt bad and I want people to know it's ok to complain and be angry, as we move forward I say complain away.