My baby was so happy and content, only cried when she was hungry, but when she turned 5 weeks old she wouldn’t stop crying. It’s getting worse now more of a scream and nothing calms her down. She isn’t pooping but once every 4-5 days and has horrible gas. I’m starting to think she may be lactose sensitive (really unsure) so I’ve started using special formula and gas drops. Anyone else have any suggestions? If it is lactose sensitivity how long after switching to special formula will she calm down. I can’t get in to see her doctor for two weeks!