>>10576704Anon. Go to her archived Karaoke.
Go listen to what she said before listening to her rendition of the Joshiraku ED. Read the lyrics.
If she's actually your oshi, you should know that you need to be in good condition in order to be there when she needs it. Needlessly worrying about it won't help her (nor you). Showing a smile, ignoring the unimportant stuff and just enjoying life is what she'd want, I wager.