Please help getting my baby to sleep in his crib.?

I was BF our 10 month son up until a month ago. I thought he was weaning but by the time I figured out that he was on a nursing strike, it was too late. For BF reasons, I din't mind him sleeping in bed with me but things have gotten worse. He won't even take a nap if I'm not laying in bed holding him. I tried getting him to sleep in his car seat and stroller but that didn't work. I even moved his crib right next to my bed and removed the side rail. Not only does he throw a fit whenever I try to get him to sleep in it, he's actually thrown up because he cried so hard even though I was right there comforting him and holding his hand. Transfering him there after he falls asleep also fails. Even when we are sleeping at night, he constantly wakes up to make sure he's touching me or that I'm holding him. I don't mind him sleeping with me at night but I'm confined to my bed whenever he takes a nap because he could roll off the bed if I'm not there and most days I have to wake him up anyway just so I can get to the bathroom in time. I can usually roll him off my arm once he's soundly asleep. Any ideas anyone? Sorry about my spelling but I had to use my cell phone while I'm laying down next to baby boy!