Survivor since 2011
It is true, but if you are being treated for breast cancer you will likely lose your hair. Of course, I asked the same questions, hoping and praying I would not lose my hair, but I did, right when they said I would. As for the sickness, some people feel bad and some don't. Some get nauseous and sick and some don't. But there's no guarantee, so be prepared and follow the nurses' and doctors' instructions for managing side effects so you feel as good as possible.