I was "naturally slim" in my youth. Gained in my pregnancies and used the expenditure of breastfeeding to lose the surplus while returning to my regular eating patterns. I'm short and gained a hefty 3-4 stones of pregnancy weight in part to becoming sedentary from pelvic pain making most movement too painful, but could reset back to normal in my 30s.
The battle has been since turning 40 in the lockdowns with a bad combination of lifestyle disruption, comfort eating and shifting hormones, and I just couldn't shake it off. I managed to restore movement routines, and reset some new unhelpful snacking habits, but while I could maintain weight, when there's been disruption such as a holiday it's got harder to lose it, and as a middle-aged woman, living with rapidly growth-spurting teens and a tall MAMIL, it's hard to eat little enough to keep at a deficit or long-term maintainance level that takes disruption into account. Eating half the amount of food as the people surrounding you at the dinner table is not fun, and that's despite the weights, active lifestyle, drinking few calories and eating well most of the time.
I've ended up starting HRT and using Wegovy to get out of being overweight, and it is breaking the cycle. I haven't changed my food choices, but I am now satisfied on a smaller portions, and not craving sneaky little snacks to boost my energy, especially in the luteal phase. I'm getting a bit more bounce back so I'm getting more little bursts of movement back as I'm less sluggish. It's feeling comfortable to move more and eat what my body needs, not what my brain wants, and I'm feeling more in sync like I was when I was younger. I'm hoping that I can trigger some longer term reset from this.
Keeping to a healthy weight isn't "natural" for me as it was when I was when I was younger, and looking at my family, I'm not genetically advantaged; we all struggle after 40, not helpful being short either. While there's a lot I do right, having a metabolism running at 1500 calories per day average just leaves little slack for anything off-piste, and things like Christmas, holidays and the odd meal out totally bugger that up. My maintainence looks like other people's strict dieting which really sucks