My daughter has Mitochondrial disorder with global developmental delay. She is eleven and began her menses 3 months ago. Last month she was hospitalized for gagging to the point that she was strangling and would take 15-20 seconds to get her breath back. She was strangling on her own saliva. These apnea episodes kept getting longer and were occurring 10-12 x/hr. She would de-sat down to low 80s and come back up. At one point she was rebounding only to low 90s. A day or 2 on O2 she began being able to recover to 98-100% at room air. Two days ago I noticed she was strangling, retching again, but infrequent. Today she has increased frequency to a couple x /hr. She seems to be successfully treated when I give her Mucinex. However she is already on Zyrtec in am, Allegra at BT, and Cuvposa tid. Is it possible her beginning her menses is related?