I can't think of a good way to describe what he is doing, but it is driving me crazy! Lately he has been getting episodes of frustration and telling me about how his "yawns" are hurting him. I have no idea what he is talking about, but it really bothers him - it happens maybe once or twice a day for a week or two now. Last night when I was reading to him before bed he kept taking these really deep breathes and lets it out really loud, I asked him why he was doing that and he said it's just his "yawns" and no he couldn't stop he had to do that. He's been doing it all day today too no matter what we are doing and it is hard to listen to. I have the TV on the moment so he's just sitting there, but he is still doing the deep loud, breathing. Can anyone at least help me describe it better so I can look for something helpful? Thanks!