Therapists are not professionally trained in the area of weight and body types, so I'm not sure why you're trusting her on that. I suggest checking out a BMI calculator. It's not the most accurate measurement, but it'll give you an approximation of what area you fit into. You will likely fall into the overweight or obese category, I'm not sure which. If you go to any doctor, they will probably tell you that you could stand to lose a few pounds. That is not what I would call an "about average" body type. I think it's time to be honest with yourself, and with potential partners.