its sounds like your doing what you can, suggesting to the parents what you see is maybe causing an issue for her at the daycare.
I had a boy for almost 2 years who got increasingly whinny i guess before he went to school he also slept in moms/dads bed idk if that caused some of it, he didnt have an issue with wind this just reminded me that it seemed like he maybe just got bored? id give him plenty to do, but always made him be part of our group, not come follow me around which is what he wanted to do, and the closer to school he got the more it seemed he was just ready to go, we didnt have any friends his age in care at the time.
i hope you find a solution soon
