My 11 month DS has only ever slept on his tummy after steadfastly refusing to sleep on his back, but has always prefered lying on my chest or in the car seat, but whichever way he sleeps, will constantly wake through the night and cry out in pain. Sometimes he can be settled fairly quickly, but at other times he will continue to cry for what seems like an age.
He has always had a lot of wind (both ends!) which we have fought to help him bring up from day one and seems to suffer with tummy ache a lot too.
My DS also has a more or less permenant cough and at times his breathing can be quite wheezy (doctor states his chest is clear) and when he coughs it seems like he brings something up which he then swallows with a horrific look of distaste on his face.
From trying to do a bit of net research it sounds to me like he may be suffering from silent reflux and wondered if anyone else has experience of this and if it is likely in my DS.
I've already ordered him a wedge for his cot in the hope that this helps, but don't want to see the doctor if I am way off the mark (already having a battle with them over possible lactose intollerance)