Doctor Says my Weight Gain "Above Average"

I've gained 22 pounds and am 24 weeks tomorrow. She said the average is 15 by this point. I told her I gained 45 pounds with my first and it came off right after... I am typically a "normal" BMI and don't gain at all unless I'm pregnant. Why do I feel so upset about her pointing this out? I've been eating healthy and trying to move around as much as I can. Here are photos of non-pregnant and pregnant me. Had anyone else been talked to by their doctor about weight gain?