It depends solely on the friendship.
The only no no is making your friends round the clock T's, and since you usually manage by yourself, I don't see your friendship in danger of this.
The only person who can confirm what is and isn't appropriate is your friend.
Mine want to know every gritty detail because it's educational and so far from what they've learned on tv. Easy part for me was / is, they ask for details.
So maybe next time you two are having a bipolar related discussion, express that you're not sure how much to share and hopefully your friend will fill in the blanks.
Would be a good idea to even mention your reservations about over sharing, like you have here.
Best if luck