Good for you for listening to your baby's needs when he was sick and keeping him close by. Babies like to be close to their parents. Babies sleeping next to a parent have calmer respiration rates.
So my question would be, how do you feel about your current sleeping arrangement? I doesn't matter what anyone else thinks. If it's working for you, your hubby and your baby at this time, why stop?
Also, take into consideration that new research is out and it has found that babies left alone to cry can suffer brain damage. Their cortisal levels in the brain rise to dangerously high levels. I'm not trying to scare here, and it seems like you are just doing your best with what you know. But if something I was considering for my baby could possible cause brain damage, I'd want to know.
And...I saw on another post that someone said that babies will throw up to make you feel bad. If your baby becomes so upset to be throwing up, that's sad. Do you like to throw up? What baby would throw up just to play some sort of mind game with you? Babies can't manipulate, they don't know how until their toddlers. Babies cry for needs!
So, consider why you want to make a change first, if you still feel led to move him to his crib, that's fine, just try to do it lovingly.
And the thing about throwing up wasn't directed at you, I just felt compelled to respond.