Bartholin gland pain, vulvar dryness, or bone pain?

sumomo

I am not sure if it's a SE of Tamoxifen. I have a pain down there. The location seems to be the same as Bartholin gland but the symptom is not. No swelling at all. First, I thought it's a skin irritation. But if I press, I feel the bone inside and the pain seems to be there. Does anyone have a similar issue?

Thank you.