My girlfriend has similar symptoms. She feels that people don't like her. She also gets extreme pain inducing headaches several times a week (which I actually

My girlfriend has similar symptoms. She feels that people don't like her. She also gets extreme pain inducing headaches several times a week (which I actually thought she should treat separately, I didn't relate it to the first). She also shows other symptoms (lots of time spent on Facebook doing nothing, she only works 20 hours a week and we have no children) She recognizes she's depressed (which I think is a huge positive), but she refuses to seek outside aid (and she's a psychologist with a postgraduate specialization in learning disabilities). I've also failed to convince more distant relatives to seek aid. How would you go about convincing someone to seek outside aid?