30 years ago, my grandmother was misdiagnosed by a clinic. We found out only after going to a hospital A&E that she had colon cancer, with only 6 months to live. It was a terrible shock to all of us. Because just a day before that, my mum brought her to a clinic, and the doctor there brushed it off as just an old age disease. So if someone were to ask me, should we question an expert's opinion? And is it okay to get a second opinion (or more) elsewhere?