Dark Circles and Bags

I have been awfully busy the past two weeks - whether or not I will be able to propose my dissertation in time for applying for internships is still uncertain, but I am working away... Last week, I did not sleep two nights and slept in my office for another two nights. I think what makes it so tough for me is that I am not a naturally research-oriented person and everything seems to take me too long. Anyway, I went homes yesterday afternoon, had about 7 straight hours of sleep, and at midnight, I came back to my office and have been working away again. I just happened to catch sight of myself in a mirror - I look horrible. Haggard. And I have dark circles under my eyes! That is something I never thought I would ever see since I have dark skin to begin with! But I do have them under my eyes - dark circles and bags.