Bf tells his mom private things about me!

My bf has always been open with his parents since I started dating him. He’d ask them personal questions about us and what not. Anyways, today I came over after going to an ob/gyn app for a possible mild yeast infection. I came over to his house and I saw a box of pills for urinary pain relief. I asked him why it was in his room because it wasn’t mine. He said his mom thought I needed it. I asked him how would she know that I went to the doctor for vaginal burning??

He said his mom asked him where I went and he told her I went to the doctor and that’s it. So I asked him how the heck would his mom know I specifically went to the doctor for a possible UTI/yeast infection? He said he didn’t know and he didn’t tell her that.

I kept asking him more about it and he said that his mom was wondering why I keep going to the doctors. I guess the first question she asked my bf was if I was pregnant, which I’m not. Than she asked if I had a serious disease or “if I was going to die”...he said no.

Than according to my bf...she jumped from “is she going to die” to “does she have a UTI or yeast infection?”. My bf told me he didn’t say no or yes...which means he basically implied that I do. ANNNND that’s how she knew about MY health problem atm. I asked my bf why he would tell her things that are private. He said he didn’t know he shouldn’t tell her those type of things.

I got into an argument with him because I was mad he would tell her my personal problems. I didn’t even tell my mom about it because I find it personal! I’m also mad at my bf’s mom because why did she need to keep asking him questions about me until she got the answer? I don’t want everyone to know I have freaking vaginal burning and I definitely do not need his mom to know that. I’ve had a really strained relationship with her due to the things she has said & done to me, so I’m not open like that at all with her. If she asks me about it next time I’m going over, I’m straight up telling her that it’s my personal business that I want to keep private and she shouldn’t worry about it. All my bf could say was that he didn’t know he shouldn’t say that & that he won’t do it again. Would you all get mad at your S.O. if they told their parent about YOUR personal and private problems???

Also, yes I know UTIs and yeast infections are normal and very common. I just don’t like to share that type of info with people. Just a preference.