
PCOS now known as PMOS can be very difficult to get properly diagnosis and one of the symptoms is having weight issues. It’s not super well researched either and makes it difficult to figure out what will work best for your body without a lot of trial and error. Ironic you mention ADHD as many people actually get diagnosed late especially if they are woman as most symptoms doctors were looking for were seen more in young boys. I reccomend doing more research to understand.
Women with PCOS tend to have higher androgen levels and, as a result, slightly more lean body mass. So maybe the correlation works the other way? Women with PCOS might be more motivated to keep going to the gym because they see more success than their peers early on, and those small wins are motivating.