Cumin always shows up on these lists, whether it's with heavy metals or something else. It's to the point where I've more or less just stopped cooking with it because I don't trust it to be safe.
In other words it's not a reason to avoid a few occasional pinches of cumin.
This doesn't happen to me with anything else, I'm not a picky eater and will happily eat literally anything else
You're not wrong. If you smell pure cumin (without any other spices or herbs), particularly if you grind and mix it with yogurt to make a salty lassi, you get a whiff of body odor. My kids called it "the BO drink".
It's a weird thing, but the smell becomes quite different in combination with other smells. It's an ingredient in many expensive perfumes, believe it or not! [1]
[1] https://www.fragrantica.com/news/CUMIN-Polarizing-Note-of-Sw...