Extremely fussy baby

A

I have a one month old baby boy who seems to be constantly fussy during his waking hours. He does suffer from a lot of gas. I have tried gas drops, gripe water and now switching to Enfamil Gentleease formula ( I was previously using Similac Pro Advance). When he is not gassy, he seems to cry most of his time awake. Diaper changes make him cry to no end. Even the slightest drop has him crying out. Has anyone else experienced this? I’m a first time mom so I just want to make sure that I am not missing something that should be done for him.