Had to NC for this as DH knows my usual username.
Before I start off, FIL is a lovely man and nothing is too much trouble. My problem isn't with him, it's with my DH.
I'm pregnant with our first child and FIL just texted me to remember to take my iron tablets. I found this quite weird so texted him back asking if DH had told him about my low hemoglobin count? Turns out DH has showed my maternity notes to FIL several times. I contronted him just now when he got in the door.
My maternity notes - as I am sure they all do - have lots of personal stuff in it; it mentions I've had a miscarriage before I met DH and describes my anxiety attacks etc. I felt so betrayed finding out he'd show all this to FIL without even telling me.
DH is now pissed off because "he only wants the best for the child and that FIL can look out for any potential issues and give advice if needed". Please tell me I am not the one being unfair!