It'd be impossible for anyone to realistically suspect a random adult was sexually abused based on appearance, characteristics or behaviors. It doesn't cause any singular, unique identifying symptoms. Symptoms can represent a number of disorders or none at all. For example, you mention being overweight: last I checked, more than two-thirds of American adults were overweight or obese.

Once you're able to process your experience, you won't have that internal pressure that feels like it can be seen externally, that feeling of being different and sticking out will
resolve.

(P.S. Also, therapists are notoriously quick to consider sexual abuse because it's often not disclosed, so they're certainly more mindful of the possibility than anyone else in the general population. Joe schmo doesn't think like your high school counselor dealing with troubled girls all day long. When one is hypervigilant about abuse and protecting children, they can suspect it everywhere and extra careful to consider it.)