Feel like a bad mom...

So my son is 4 weeks old now. For the last two weeks he has been totally different from how he was he first two weeks. He almost never sleeps now, nurses constantly, always uncomfortable, cries nonstop and can never be put down. He’s even worse in the bassinet at night (spits up all night, constantly grunting then crying, nurses every hour). I’m taking him the see his pediatrician for it bc it seems like it’s his stomach (gassy and reflux) but in the meantime I feel like the worst mom. When he cries I don’t want to pick him

Up, I get frustrated with him, I don’t want to feed him, and a lot of the time I sleep through his fussing. Sometimes I let him cry a while bc I’m so frustrated and then I feel even worse. And sometimes I also let him sleep in the bed with me bc it will actually make him sleep for a little while and my 7 am I’m desperate. Anyone else Been through this? Really struggling at the moment 😢