almost 4 month old poop EBF! TMI pic

He is exclusively breast fed never had a drop of formula. Why is his poop turning lily hard? It is still soft as you can see but it looks like little "turds" are starting to form... I don't get it. So weird. You can see little seeds still too. I miss his sweet smelling seedy poop. He drools more often now too anyone else have this issue? His poop stinks sooooo bad now though too