Twins scream everyday 6-8pm

Twin girls are 12 weeks old and almost everyday between around 6-8 pm they scream bloody murder. I mean like so hard they go silent they are screaming so loud.

Nothing stops them except waiting it out.

They both take famotadine and are on same formula. We do gas drops at every bottle. During the day they are pretty much fine with an occasional scream.

Any ideas? I can’t take it anymore.