The last time I think I was within my healthy BMI I was probably my unhealthiest. I partied really hard, smoked a lot of cigarettes and lived off scraps basically because I spent all my money on clothes. That was before I got pregnant and I was 65kg. When I stopped partying, smoking and started eating food I was about 112kg after I had my first.
When my daughter was one I started a shake diet and within 6 months had dropped to about I think 69kg. I was wearing size 10 all over like I was when I was pre baby even size 10 pants. I had developed a pretty intense eating disorder by the time I was pregnant with my second and was exercising 2 hours daily and eating 800 calories a day up until I started endangering my unborn child's life. I quit gym and started eating and was at about 80kg after I had him.
I then had another child and after him went up to about 115kg and I was absolutely miserable. All my injuries flared up, I struggled with minor tasks and so I started training and eating well again last year. I dropped down to 76kg but now am hovering around 80 give or take. I do a lot of heavy weight training and for the first time in my life I have some sort of curves but my body is completely different.
I accept my body now is pretty close to how I'm naturally built and while I don't fit into BMI and am considered overweight I no longer chase that as an ideal. I think I am the fittest, healthiest and my body is in the best shape at this weight even though I'm considered over weight.