Health Effects of Night Owl
pasbesoin: Without going into the larger picture, if you do continue this I'd suggest taking good size doses of Vitamin D.  In the last few years, research has been emphasizing the benefits on numerous fronts, including for mood and sense of well being.  If your schedule is shifted this much and most of your time is spent in the environment you describe, your body may not be making enough vitamin D on its own.And get the D3 form; it is supposed to be more bio-active.  It's "dirt" cheap; affordable even on a student budget.