Is it normal to fart without knowing?
Yep.Totally normal
Yes—passing gas without noticing is normal sometimes. It can happen when you’re relaxed, distracted, or asleep, and the sound or sensation may be subtle.
Gas can slip out before you register it, especially when you’re relaxed or asleep. Lots of people have the occasional stealth fart; your body doesn’t always give you a dramatic warning first.
If it’s happening often along with trouble controlling bowel movements, or it’s a new change that’s bothering you, it’s worth checking in with a healthcare professional. Otherwise, it’s just one of those deeply unglamorous body things.