Don't forget you're not the only one she sees and, imagine the person before you WAS a pain in the neck but she couldn't tell them

Lots of reasons for that look and none of them have anything to do with you; it is not likely she'll look at you cockeye'd when you first walk in and haven't even said anything! Something may have happened in her office, with a staff member or she was thinking about personal problems, who knows.

I don't think she'd lie about how long a med takes to work to keep you out of her hair; if she didn't want you, she'd be more direct; she's a doctor, they're direct :-) I'd try the med for 2 more months, keep a diary and take that in when you go next time :-)

I'd track your depression, your sleep, your eating, everything I could think of; start a free blog somewhere and daily go and fill in when you go to bed, to sleep, get up, how well you sleep (scale of 1 to 5), what you eat, what other meds you take, when you take them, etc. I love taking in stuff to my doctor (who often doesn't listen well) and giving him "proof", he starts listening better and gets more interested and respectful :-)