I'm 19 and I live with my moms family. One of the family members never showers. I mean she can go 7-10days without a shower and she's always stinky even in winter. So here's the thing. I noticed that her panties have POOP PARTICLES on them when she leaves them for the laundry, she doesn't even bother to handwash them beforehand 😩 and I got so terrified and I started collecting my own laundry and do it once a week(or whenever I get enough) on a quick wash in the maschine hoping they won't notice . I'm consider myself a very clean person and i change my panties everyday, sometimes twice and I shower also 1-2 times a day. I never leave my panties with discharge on them and I've never gotten poop on them because I use baby wipes.

Do you think it's rude that I don't leave my laundry like normally and that i do it on my own?

The other family members started noticing and I can't tell that I'm grossed out of her because they will get mad at me because I'm the youngest .... What do i say/do?