Yes I quite agree. I suffered from weight gain due to my hyperinsulimia.
When I stabilised it all I started loosing weight again doing fairly the same amount of exercise and sports I did in the previous phase.
Pity doctors do not recognize this problem. When I was hyperinsulimia doctors said I was fine. And God knows how I didn’t feel fine.
As you quite correctly stated obesity or increase in weight is a symptom of something going wrong especially in people who have already a healthy lifestyle and diet.
