My son can't be comforted and has been whining all day — nothing helps

So frustrated and exhausted. My son just can't be comforted no matter what I do. He has been whining ALL day. He has been fed, changed, burped, has toys around him, and has no fever. I gave him gripe water and am trying to put him down for a nap but he just struggles and gets stiff and just screams. Lord help me 😑