Baby super fussy when being put down in bed

Cr

Is my baby going through some sort of phase or something? Used to have no trouble at all once I got him down sleeping in his bassinet, now he just seems super fussy (I think his tummy is apart of the problem too) and sometimes last a few hours but most time only lasts over an hour in his bed but during that time moves around and makes a lot of noise (more than usual).