D.M.
Hi B.---I'm not really sure what might be going on with your babe, but the biggest thing that struck me with mine is this. It seemed that every time I think I figured out a routine that we and/or the baby was in, they would change. I think little babies just grow and change so fast, that it is almost futile to think that it is actually a 'routine'. So, just make sure that he is warm, dry and fed and this 'new' development is likely to change again.
Good luck and have fun with the changes. D.