Is it normal to sniff your knickers?
Yep.Totally normal
Yes—sniffing your underwear is a pretty common way to check how it smells or whether it needs changing. It’s usually just a practical or curious habit, not something to worry about.
Yep. Plenty of people give their underwear a discreet sniff to check for sweat, odor, or whether it’s still fresh enough to wear. Bodies make smells; doing a quick check is just one of those unglamorous human things.