My baby boy and wife

For the pass few days, my baby boy is sleeping ok at night. Only woke up 3 times in a night.

But yesterday, he was up almost the whole night, and my wife was almost up for 24 hours, since the husband is too tired. We had fed him enough (sometimes even thinking we might had overfed him), but only one things which we notice is that he pass motion quite a lot in one day. So perhaps, I was thinking that he might have some stomach issue. ( I am going to ask the doctor tomorrow since is his medical check up)

I do not know what to do, and the baby just kick up a fuss whenever my wife put him into the moses basket(after she carried him and he fell asleep), but after a few minutes, he will be crying. We really don't know whether he is sick or just feeling uncomfortable.(I guess this is how parents are like).

And my wife, who needs rest the most, had not been sleeping well after discharge from the hospital.

What can I do to help?

My baby Isaac, what's wrong with you? Can you please tell us?