I understand the reluctance to share what is going on with too many people. I think we have all been there.
As I've journeyed along with this whole thing, I have become more transparent with people, but I think that is just because I am used to it now. And for me, it's much less embarrassing when people know beforehand. Then when I do have a seizure around them, they know and I know they understand, and it's just a little easier for me to accept that way.
You might consider posting general info rather than specific. When I was working, we had a paper posted on what to do if someone has a seizure. It didn't indicate who in the workplace had epilepsy, it was just general reference in case of emergency. I was comfortable with that, knowing people were equipped without it all being focused on me.
I hope your doctor has some good suggestions for you! I definitely recommend the bracelet though, or if you'd rather not, you could get a wallet card with your doctor info and various contact info for emergencies. You could, as you said, just tell a few friends that the card is there so that they know where to look for it. Or, alternatively, you could include that info on the action sheets to give to your friends. But away from the workplace, it's definitely a good idea to have the jewelry, or shoe tags or something on your person to help inform first responders. A relative of mine with a serious medical issue wears medical dog tags, as a more discrete option.
Oh dear, I have the late night ramblies. I need to go to bed!