Not yet on HRT here, either, but I have noticed a great difference in what arouses me. Decades ago, it was tough to get a flat tuck, but now it’s easy, and with just regular panties. I used to get aroused by some women just in public, but now it’s not the case. Even in times when a CIS BFF and I are getting ready, seeing them in lingerie (or less) doesn’t do it. But, I can’t say the same thing when it comes to men. 😉
As they say, “normal is just a setting on a dryer”. And with all personal experiences, YMMV. Since your doc said that you are fine, I wouldn’t worry about it.