I was 61kg at 187cm from 15 to 30. I was eating 6000 calories a day to maintain that weight. Then I gained 22kg over the next three years and finally felt healthy for the first time. I had all the same health problems as anorexics while eating like an Olympic athlete.

It was just genetics. Multiple family members were like this but not as bad as I had it. Now I have a nephew who has it just as bad as I did. He just has to wait another decade or so to achieve normalcy.