Smelly farts?

Faith

Lol I know this is weird but my first kid never had this issue. My little one is 3 weeks old and is formula fed, and he is a pretty gassy baby. He doesn’t have any issues popping but he seriously farts all day and night... and the last Couple days they have been starting to sleep so so bad, like rotten eggs.. Is this normal? Or is it okay? Like I don’t understand how such a big smell can come from such a small baby