"I'm still to light exercises that doesn't involve Fitbits."
First of all, what a wordsmith our gorl is. Truly astonishing.
Secondly, there is no way her (fictional) doctor, or any doctor, would have advised her against walking, which Fitbits track.
It's interesting that she can manage to walk herself into Torrid and the Cheesecake Factory, but a walk around her neighborhood is "against Dr's orders". What a sad and pointless lahhh.
Oh, and to answer your question, she didn't actually go to the doctor, she mentioned a few videos ago that she emailed her Dr. to ask for help with losing weight. According to her not only was the doc thrilled to be part of her journey, but the entire staff was excited about it. And now apparently promptly told her not to exercise. Seems legit.