Baby is 16 days old. Almost a week he stopped pooping on his own, I'm …

Baby is 16 days old. Almost a week he stopped pooping on his own, I'm worried because he became very restless. Plus we have a inguinal-perianal hernia, and when he doesn't poop for a long time, it seems like it gets bigger. Because of it, I'm also worried because there's a lot of bubbling in there. The pediatrician prescribed Eспумизан and that's all, but I think I'm going crazy soon ?