Stealthed in a hospital and was shit scared the whole time. Is this what being stealth is like?

I'm pre-T and 19. I passed as male in a hospital by accident, a friend filled in a form for me (I don't speak the local language. Me and my friend are from the same country and it's a country with several languages) and gave my name as my male name.

I have mixed feelings, I felt more relaxed and happier on an intrinsic level. But I was also anxious, and a nurse was confused and confronted me and I started panicking massively. I just didn't respond to her and nobody said anything about my name/gender before or after that but I was still anxious. I was wondering if being stealth means being really fucking scared all the time that someone figured out you're trans