Delayed transition or respiratory distress syndrome????

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My son had this when he was born. He ended up correcting it himself and didnt need any treatment. He was breathing but was grunting when he was breathing so they took him to the NICU to monitor him. Everyone just told me it was fine has anyone else's baby dealt with this and had long term effects??? He has some mild symptoms of laryngomalacia and I'm wondering if its related?? Hes almost 2 months. And hes fine. But idk if I should mention it to the dr or if I'm being crazy lol all the drs in the hospital told me he was fine and not to expect any complications but...I'm a hypochondriac so, I worry lol