illness /ˈɪlnəs/ N-UNCOUNT ~ is the fact or experience of being ill. get over something: to return to one’s usual state of health after an illness; Sid got over the flu. He’s feeling fine now. fight something off: to avoid getting sick; to free oneself from an illness; I thought I was getting a cold, but I fought it off; I got plenty of rest yesterday, and today I feel fine.
Don’t talk about illnesses. Rest assured, nobody wants to know.