Hello, I have noticed that in the last 10 days, my son keeps taking deep breaths (about every minute or so) more so when he is sitting or relaxing. I also monitored him during sleep and he doesn t have any problems. He doesn t seem to get winded after playing, but sometimes he seems a bit melancholic. I talked to my pediatrician about it and she said that it could just be a tick. She didn t suggest any exams. Your help would be greatly appreciated.

Summarized question: What causes diaphragmatic breathing?