Here is a little history... My DS14 was accidentally choked last March and was admitted to the hospital with a pneumomediastinum. Since then he has had 4 recurrent pneumomediastinums and a weight loss of 20 pounds. He is asthmatic but other than that is pretty healthy. We saw his Pulmonologist today but he seems to be at a loss. He ran some blood work and is going to speak with some colleagues about the case. Any thoughts or experience with this? I am feeling pretty discouraged that I can't help him