Oh hun Personally I would also drop the TT. it doesn't sound like he is ready, I know neither of my girls were at that age. Does he nod and shake his head for yes and no? If so, can you look in to baby signing to help him communicate if he doesn't have the words?

I agree with the above posts - trust your gut instinct and get him looked at, persist if you need to until you feel comfortable with the answers. Look st the GAPS diet and give it a go - it can't hurt.

As for Kat, it sounds like reflux to me. If she is lying down and it is painful for her it is likely that the reflux is coming up. I would also get her looked at for this and also look at how you can help her by propping up her mattress, the foods you eat etc.