DP and I are atheist. BIL is a vicar. Normally, it's all fine, we get on very well, often look after the other's DC etc.
I have MH issues, and recently had an episode while the DC and I were on holiday with MIL. Nothing major, the DC would not have been aware but I know MIL was worried about it.
BIL recently mentioned in passing to DP that he had discussed the episode with MIL and asked people to pray for us. DP was a bit
but I am really upset. Is it really ok to share my medical history with people I don't know without asking me?
I don't know what he's told these people or who they are, but I thought he would have some kind of ethic around confidentiality and he knows if he had asked me I would probably have said no 
If he was a health care professional or social worker I wouldn't expect him discussing my "case". If he wants to pray for me, fine, but him asking others makes me really uncomfortable, especially as he wasn't even there when the episode happened. I'm worried about going to see him now as people drop in all the time and I don't know what they think they know about me
. Am I over reacting? Or was this really out of order?