My baby doesn’t feel good

Okay mommas what else can I do if I can do anything. My baby is 4 weeks old and has an upset belly, I’ve given him gas drops but they don’t seem to help much. He’s been sleeping all day and just wants to be held and not eating as much which is unusual for him (I know it means he’s going through a growth spurt) but I just want to make him feel better. He’s super gassy and I feel so bad for him😓