Hi All...I come to you for some advice. My little one HATES to be on his belly. Consequently, he has developed a flatten out head.
He is 3 and 1/2 mo. now and I can sit him in his bumbo chair, but he doesn't hold his head up straight. He sort of bobs it up and down like he is still trying to get ahold of it, so to speak. It will stay up for a few seconds and then all of a sudden it will sort of jerk up and down and then his chin will be on his chest again.

How old were your kids when they could sit up in like a bumbo with their heads UP and not bobbing over side to side and up and down...

I'm afraid it is because of the lack of tummy time...and his neck muscles aren't as strong...should I be worried at 3 and 1/2 mo.??
He is wanting to start sitting up, he tries to when he is flat on his back, I see him struggle to bend at waist and sit up.

Any and all advice is extremely welcomed.
Thanks all, in advance, for your thoughts.
Susie.