I'm 68, been morbidly obese from a young child until 3 years ago. I'm now a healthy weight, BMI 25.2 so still technically overweight.
Having been fat all my life, I had no idea how nice it is to be a normal weight, being able to walk into any clothes shop and know stuff will fit, able to be more physically active, treated very differently by people, particularly health professionals but my health is fucked as a result of my obesity.
Osteo arthritis in my knees and feet means that walking is uncomfortable to painful, it's a struggle to get comfortable shoes because of my swollen big toe joints.
I have reflux disease and a hiatus hernia and continual stomach issues, like nausea, indigestion, pain for which I have to take some nasty medication for life.
Being morbidly obese causes fatty liver disease but I no longer have that now I've lost weight.
This also causes high blood pressure, which then causes your left atrium in your heart to become enlarged, and this causes an arhthymia called atrial fibrillation which is where your heart can no longer beat in a regular rhythm. It is the worst thing I have ever experienced and also massively increases the chances of having a stroke. I have known stroke victims, I'm terrified of having a stroke as there's no coming back from it.
I've had a horrendous procedure to try to prevent the atrial fibrillation where they burn areas inside your heart while you are sedated, you do feel the burning. I'm also on some extremely nasty medication, seriously awful side effects, to help improve the arrhythmia.
Also have to take an anti coagulant to reduce stroke risk. This thins the blood, so any cut bleeds for a long time. There's no antidote for this drug so a major cut could mean I bleed to death.
I have 12 items on my monthly prescription.
The other thing is the huge amount of ugly saggy skin everywhere as I lost weight late in life when my skin was too inelastic to shrink. It's hideous.
My advice to anyone who is overweight or obese is to do something about it in your 40s at the very latest. I bitterly regret not losing weight years ago.
Good luck with your weight loss.