I think she's just judgy, in that doctorly way: "I am the doctor, therefore I know best, and it is my responsibility to tell you what you should do."

Reasons to keep seeing her are not great but they exist: I don't know of a doctor around here who doesn't treat fat middle-aged unemployed women with contempt, I find change stressful enough that I'm reluctant to do it without any confidence that the new thing will be better, and I actually find naked contempt easier to cope with than thinly-veiled contempt.