I actually think her tweet is so telling in terms of her psychology— like, she truly tells on herself there in a desperate attempt to assuage her ego.
In my opinion, it’s clear from her tweet that deep down, perhaps even subconsciously, she feels a shame over actually getting that sick, and to the point of being in a coma for months. This shame comes from the fact that her identity has been based on a mythology of her physical greatness, her absolute health, her defiance of popular expectation. Yet in the midst of proudly proving what a healthy and normal pregnant woman she is..... she actually becomes the opposite— she is a high risk patient, she catches COVID, and it does such damage to her that she is in the ICU in a coma and unable to be near her newborn baby, causing untold mental and physical trauma to her and her son.
So instead of reckoning with that, she has to publicly declare that in fact the whole thing was even MORE proof of how great, wondrous, defiant and, almost, healthy she truly is and always was! Getting sick isn’t the point, the point is that it is her and especially her that was able to beat the sickness, because that is who she is. The whole thing shows a girl who is desperately clinging to her identity that she needs to feel worthy, somehow. And also it reveals a problem with the HAES mentality, which is— is it okay if you’re not healthy? If you admit that you are sick... is there weakness in that?