Questions about virginity and transvaginal ultrasound

I have fibroids that were detected with a pelvic ultrasound years ago. I remember being asked whether I was a virgin because, based on my answer, the doctor would order either a pelvic or a transvaginal ultrasound.

Now I'm 27, and over the years I've done more research and matured a bit. I've realized I don't really care about the idea that virginity is tied to an intact hymen. It seems like a misconception to me. I'm still a virgin for religious reasons, but I think virginity has to do with whether you've had sex, not the state of your hymen.

Anyway, I read that transvaginal ultrasounds are more accurate and can provide a better picture of what's going on, so I asked my GP to refer me for one. I also wanted to confirm that it would be the better option. She asked if I was a virgin, and I said yes. I also told her I didn't mind having something inserted (sorry if that sounds crude) as long as it wouldn't be painful.

There was a bit of awkwardness, and she seemed reluctant to explain further. She basically said that if I wanted the transvaginal ultrasound, there was no problem, but since I was a virgin they were going to "smash down" my hymen.

That surprised me. I looked up the probe used for the exam, and it doesn't seem very large. I also use menstrual discs regularly, and to position them I often have to insert my fingers without any issues. I asked my GP because I assumed she'd have more anatomical knowledge, but it almost felt like she thought a virgin's vagina is completely sealed by the hymen, which doesn't make sense to me.

Is a transvaginal ultrasound really that rough for people who have never had sex? Why do doctors seem to not be aware that not every virgin person has a fully intact and "sealed" hymen? I'd bet most don't but that's my personal supposition.