did you tell your friends about your diagnosis?

i was recently diagnosed with, i still don’t know if i should tell them, but they ask how im feeling and when im depressed they get worried

i don’t know if im ready for people to know, only my mom knows, but i don’t know how to tell them yet and what to say when asked

today im depressed and a friend invited me to her home, i said no that i feel like shit and she is worried thats the context

edit: i study psychology, also my friends