How do I know what my restored weight is if I used to binge eat??

Idk if I had full on BED at the time but I definitely overate in middle-high school as a sensory seeking experience (I'm autistic) and obviously that led to me slowly becoming borderline obese. I was never truly obese but I think I was like 2lbs away from it. I also led a very unhealthy life generally, I never exercised or ate healthy food, only fast food and junk. I definitely would have become obese if I didn't become self aware in college. Unfortunately I restricted a lot more than I should have and became underweight. So my growth chart is just all over the place.

Idk what this means for my restored weight. The treatment center wanted me at the highest end of the healthy BMI scale but that just feels like a lot and I don't agree that that's a healthy weight for me. I remember being that weight in middle school and already feeling extremely unfit and heavy. I finished last in the mile...

I'm at a weight right now where I personally know I have been healthy before but I currently don't have any symptom relief yet (no period, no hunger cues, horrible digestion, food/body noise).

Does anyone else have this kind of experience?? I'm stuck. Obviously I'd like to stay at this weight and not have to gain anymore, I actually feel very satisfied with my body image and I look healthy, but it's frustrating when all my symptoms are still very present.