I don't see my not involving others in my bp issues as faking it. I see it as being private. I fake it when I have to force myself out of bed to haul my butt to work, but that's just part and parcel of living with bp...

After being dxd I felt a huge need to "come out" doing so didn't change anything for me personally.
I didn't feel more authentic, but then I guess I've always embraced my authentic self and that was not the issue behind my being open about my dx.

These days I say nothing, mostly because people with cancer or HIV don't ago around declaring it left right and centre, so why should I? Ya know...

IMO you need to ask yourself what it is you wish to gain from wearing a scarlett letter on your forehead so to speak. Support? understanding? acceptance? and then take it from there.