need help!! my baby screams and cries when I put him down I put him on my chest and he still cries he has a clean diaper and just ate I'm having to fed him every hour .5 oz to an oz because he's been spitting up really bad and that's what the doctor told us to do.. I'm thinking it maybe gas and I have gripe water and gas drop but if that'd not it I don't want to give it to him. any advise TIA