I don’t believe even the fattest of fats can disagree carrying extra tonnage is bad for your health. But the convincing issue is not that you will die younger than a sane person if you do not lose weight; if you are dead, you have no more problems and neither your family once you are buried or have to pay more than others to cremate your body. The problem is what happens if you have an accident or a malady that makes you immobile and bed-ridden? We all are one misstep away from that. The difference is consequences of an accident will be compounded by excessive weight while immobility is greatly lessened if you are fit or at least not morbidly obese.
Let me put it in a way you will understand: You will learn to live marinading in your own urine and feces till somebody comes with a lift to hose you down. You will learn to live developing painful ulcers on your backside for lack of movement and cleaning. You will eventually breath noting but inside air because it is a logistic nightmare to get you out of your room and into an oversized and overbuilt wheelchair that can handle your body. Ignoring you will be the path of least resistance that make life for others easier.
You will go back to eat with a bib because you will be spilling food on your chest and overly protruding belly. You will probably need to breath oxygen because your lungs’ capacity will be diminished by the amount of fat surrounding and constricting them. You will become an example of why we need Death Panels.
And the worst part of all is that you will come around and accept this debasement. And you will not mind putting yours through the misery of caring for you or working more to pay to do so.
I beg you, seek help, lose weight as much as you can.