[mikekchar]

I don't have much experience in this area, but I know quite a few people in sensitive government positions (in Canada) and finding these things is pretty common. The main issue (as far as I understand) is that regardless of what you did, you are potentially a security risk if you try to hide the issue. I've led quite a boring life so it's never been an issue for me, but when I've had to go through security checks with the Canadian government, the advice I've always been given is that if you are completely candid about your experiences, then they basically don't care what you did. The main issue they are worried about is that you will be blackmailed. By telling your employer, that risk is mitigated to a certain extent.

Especially if you are not in a position to deal with sensitive data, and you were straight up in your interview, I would personally not worry. (Disclaimer: random dude on the internet that knows nothing about your situation --- this is not professional advice!)

Just a side not on worrying... I've had some health scares in the past few years which luckily ended up being fine. I thought about how I would feel if it weren't fine. I think one of my reactions would be to wish it were the day before I had found out about anything. You know... before any of this happens you are carefree and everything feels fine. Then you have a conversation and suddenly it's not fine. But in reality nothing has changed. So when I'm dealing with this kind of worry, I try to pretend that it's the day before I had that conversation. It changes nothing except that potentially I can have a nice day instead of worrying. Of course, easier said that done, but it's helped me a bit. I hope it can help you too.