I have a medical condition that I have kept a secret from everyone other than my parents and siblings. It’s not an embarrassing condition, but I’m fiercely overprotective of anyone finding out ever. It’s manageable, requires occasional supplementation with a vitamin cocktail and no one would know I had it unless I told them. I do carry an emergency letter in my bag just in case I’m in an accident and emts need to know. 
Now my anxiety dredging up a memory and twisting it around, but 5 years ago my cousin came to stay with me for 5 days. She’s a bit nosey like her mom, my aunt. I always have a bottle of my medication in the fridge even though I use it quite rarely. And I always scrape the label with my name and doctor off as best I can as soon as I bring it home from the pharmacy. And I always keep my purse with my emergency letter in my room when people are visiting. I’m quite sure I did these things when she visited, because it’s a habit. She also asked to borrow my laptop because her charger had died and she needed to do some work. I would never give her my personal laptop, but I had bought a new one a few months ago and was too lazy to move over my stuff to it. So I created a guest account on the new one and gave it to her to use.
Fast forward to a few years later and I get these awful intrusive thoughts. Did I scrape off *all* the info from my medication in the fridge? Did I *ever* leave my bag downstairs? Did I really create a guest account on the new laptop? 
Logically I know that 5 years ago, I would have made sure I did all of this and re-checked and that’s why it hasn’t bothered me until now. But back then my anxiety wasn’t as high as it is right now. If it happened now, I would’ve removed my med from the fridge entirely, sealed the emergency letter so I’d know if someone had opened it and made an excuse about my laptop not working.
Hiding my health info causes more anxiety than my condition itself. But I know I would have 100x the anxiety if people knew about it, especially my relatives.
I’m not on any medication for anxiety, but I’m wondering if they would actually help in a situation like this? I’ve had a few more instances where I’m second guessing my precautions from years ago. The longer the time goes by, the less I trust my memory that I was careful about hiding stuff properly. And that people know, but I don’t know they know. That would be my worst nightmare.