My T specializes in eating disorders, specifically binge eating disorder. She is normal weight, but also kind of tall and sturdy, definitely NOT petite or lean or anything like that, so I used to wonder if she had struggled with weight issues.

Through my online stalking, I found a super grainy picture of her taken about 15 years ago where she looked a lot heavier (and my T doesn't have kids so it wasn't pregnancy weight or anything like that.) This kind of confirmed for me that she had struggled with weight issues of her own and overcome them, which made me respect her a lot more and also made me see her as more human and as having vulnerabilities. Of course I would never admit to her I saw this picture.

So anyways, I don't think it's inappropriate to ask your T this, as I have wondered the same thing, but I wouldn't expect an answer.