No news about Mio chan, but there is speculation / gossip?
That she suffers from an eating disorder, such as anorexia.
If true, it is a very serious condition, where the mind believes
in a perception that is very different than reality.
I really hesitated to post anything based on Internet speculation,
So hope we here more about how she is doing from her agency.
Whatever the ailment is, wishing health and happiness for Mio!