When ever I have a lot of discharge than normal I smell like potatoes down there,

U can only smell it when I have my legs close for a long time and open them or when I pull my pants down.

I don’t have a yeast infection and I’m not sexually active, idky but that how I smell when I get have a lot of discharge.

Is that normal ? Bc I’ve been told that someone else 🐱 smell like that too and they said I’m should be fine unless there was a fishy smell ( there’s not ) . Should I change my underwear more often? Btw this been going on since I started to develop so 10 or 11 and I’m 15 turning 16 soon.