I've searched high and low and can't find any information about this online. My 12 week old has started coughing when we try to do tummy time, he has been doing it the last few weeks so I stopped doing it for a bit but when I tried again today he started coughing again and I had to flip him back over. Has anyone else had this happen to them? Or have any advice? I know tummy time is important for his development and I'm worried it will slow him down