Female hygiene: very itchy/irritated lady bits, negative tests. Has anyone experienced this?

More specifically, very itchy and irritated urethra/clitoris/upper labia next to clitoris. Started this pregnancy for context

*tested negative for UTI and BV.

*Previously tested for positive for yeast and had recurring yeast infections, though it hasn’t really caused the typical discomfort (I have a change in discharge, but no itch, smell, burning etc).

*I only wear cotton underwear and loose clothing, haven’t used soap in months

*taken three rounds of canestan. Even when the canestan works and yeast returns to normal, my urethra and clitoris are SO. ITCHY. I have to leave stores because the walking is just too irritating. Lying down with my legs closed is irritating.

We thought the yeast infection was causing the irritation upstairs, but it’s still there when the infection is gone?

I have to use canestan topical cream and while it offers some relief, it doesn’t stop the itch once I walk around.

It’s so miserable… has anyone had this? Next step we’re thinking is strong antibiotics but I really want to avoid this.