He has no signs of teething. Does not crawl or even creep, just rolls around. Does not sit up alone and when I sit him up he slumps over. From the moment he wakes up I put him on a comforter on the ground for him to explore and try to get to his toys. I put him in his Bumbo for at least an hour to stregthen his trunk muscles. I don't know what I am doing wrong! I am starting to really stress over it all. 
Anyone have any suggestions on more things I can do to help him? This happen to anyone else?
Anyone have any suggestions on more things I can do to help him? This happen to anyone else?