People her size have a weaker everything. Their lungs have to struggle against the weight of the fat to draw in breath and even then they struggle to get enough oxygen circulating through their systems because of the sheer size of their bodies. Their hearts work several times harder to keep blood pumping through all of their skin and fat and then on top of that every single, major movement is a serious strain, because imagine that every time you lifted your arm you were doing a 70lbs bicep curl or overhead press, and every time you stood up you were deadlifting 400lbs.To the ppl hating for her being worried about a 102°F fever, imagine this: you're in your late 20's but you have the health of a dying old woman due to your weight and diet. Because correct me if I'm wrong, but don't ppl her size have weaker immune systems and stuff?
In a normal human and within moderation, moving an excess amount of weight in a controlled way can be very healthy. For a morbidly obese person it translates into a body that is constantly under physical strain, and that's forcing the lungs and the heart to work even harder than they already have to. That's without even having to get into the stress that's placed on the liver and kidneys and the gastrointestinal tracts which are processing more food and toxins in a single day than most people will process in an entire week, which is only exacerbated whenever these people drink, forcing their livers to process even more toxins.
It's like filling a car with watered-down gasoline and running the engine as hard as you can all day, every day.
It's one of the reasons why the morbidly obese heal so slowly: Their body is so busy trying to repair and maintain so many other things that it can't properly prioritize injuries because in a way they're in a constant state of injury. On top of that their diets are almost exclusively useless garbage with so little nutrition that the body is struggling to pull in the "building blocks" it needs to repair itself, which is also strained by the constant, inadequate supply of oxygen, which is slowing down every single system's ability to operate even further.
Morbid obesity is an incredibly delicate "balancing act" and if a single, major injury or infection occurs, then even modern medicine will struggle to save them. Just look at that incredibly minor "cat scratch" on her arm, and now imagine how quickly she'd recover from a broken leg or how well her body would fight a raging infection.
The moral of the story is that excessive amounts of shitty food just isn't worth the misery it brings.