I am sorry you are struggling right now. Right now you are in the thick of it and I am sure when the dust settles you will start to see the signs. My EXW NEVER claimed she was unhappy or asked to go to MC. But looking back now I could see she was unhappy. Snapping at the kids a lot. Typically in a bad mood. She felt caged like an animal with no way out.
Regardless, you need to take the focus off her and put the focus on your health first. Take it hour by hour or minute by minute.