Hey doc, my little girl is 4months old and so far been very healthy. However, when she cries excessively for one reason or the other, she seems to have difficulty breathing and the only way I can describe this is like her breath intake becomes a bit suspended for a few seconds while her ribcage expands frozen like that for a while before whatever constriction is happening in her chest lets off and she is able to release the air and breathe normally again...like a soundless wheeze. This started when she was about 2mths. This keeps going on intermitently for about 30mins after the beginning of the excessive crying. I am wondering please, is this the beginning of some trouble?