K.H.
Definitley cannot spoil the baby by holding too much, especially at this age. And I hate to tell you to do it, but my babys both had to lay on their tummys, i fought it and fought it, but if i ever wanted rest i had to do it. Just make sure the crib sheets are TIGHT! and no blankies etc. just dress him warm enough. And the crying is probably his formula, if youre breast-feeding, WATCH YOUR DIET! no broccoli, coffee, beans, alcohol, etc. Try the gasdrops, you can find them anywhere! It might take time, my second daughter cried alot at first.
Good luck!