I am so glad I read this post. I have been going through the exact same thing. I had my first interview three weeks ago at my alma mater and have yet to hear anything, when I've already run into people who have heard. Called the secretary yesterday and was told that more letters would be sent out "sometime next week". Aughhhhhhh. In the mean time, I am trying to keep up with my research lab, 5 classes (four of them online and all of them intense), preparing for an interview that's next week, and nervously waiting to hear from other schools. And here, I thought I was going to lose a bunch of weight this semester. NEGATIVE. I am on this website now grubbing on Chinese food and watching Netflix. Not to mention checking the results section like 20x a day.