Travel insurance always asks about previous medical issues it is one of the questions when applying for cover. If you choose to ignore or lie then god help you when you go to claim if you do as it will be refused if it is about a previous ailment you did not declare and some insurance companys will refuse on the grounds you lied on the application form. That is a 100% fact. And by the way travel insurance is medical insurance that’s why you get it to cover for accident or sickness cover.