My 16 month old keeps doing this thing where she will lay on her back, cross her legs while holding her hands together and she will repeatedly hold her breath for a few seconds then stop then do it again. She must do it up to 10 times a day and I don’t know why she does it. I thought it was because she was tired but she does it after a nap and whenever she gets the chance to do it she will. I have seen Health Visitors and they have said she’s doing it for attention but I don’t think it is because she does it when I’m not even in the room. I just don’t know what to do about it now, I’m so worried!