I've only chosen to tell immediate family members and a couple of friends. I only tell others if I have to. Sometimes, I just tell people that I have a muscle disorder if I'm having trouble standing or walking.
Like you, I have a ton of different health issues, any one of which can be acting up on any particular day. If I told everyone all of the stuff that is wrong with me, they would probably think I was making it up.
I'm with Sherrine, when I'm out with friends, I try to not think about
it unless a situation presents itself where I have to do some explaining.
Hugs - Austen