Might Be A Bit Out Of The Blue But What If Mitsuri Has Coeliac Disease? When I Was Young, I Was Malnourished

Might be a bit out of the blue but what if Mitsuri has coeliac disease? When I was young, I was malnourished due to my symptoms, which included reflux and so made eating incredibly uncomfortable

But when I went on losec and had the reflux treated, I was suddenly eating an absolute ton on some days- I could put away an amount equal to my dad, eat three peoples' significant leftovers and still have room for more. Bearing in mind that now, at 19, I am roughly 150cm.

The reason behind this is that when someone with coeliac eats gluten, it damages their small intestine and results in malabsorption- an increased appetite means that while the rate of absorption is down, there's enough food coming through to make up for it. I wonder if this is why Mitsuri eats so much while not really gaining weight- the nutrients she does get goes to her muscles, which is what happened to me with my love of monkeybarring as a kid.

Also, coeliac can be largely asymptomatic, or symptoms can be neurological. For example, when I eat a tiny amount of gluten on one day, I won't get any symptoms. If I eat a tiny amount over a few days or weeks, as I accidentally did a month ago, I won't get diarrhoea, but I will experience increased anxiety, a really low mood, brain fog, and intense exhaustion. She doesn't seem to have any other signs, and that is entirely plausible. My father is the same.

In any case, this is a longwinded way of saying I headcanon Mitsuri as having coeliac disease. During the Taisho era, coeliac was barely becoming understood and she has few symptoms, so she likely wouldn't get a diagnosis or anything. It's just food for thought based on my own experiences :)