From interviewing 40 students over the past two days - part of their midterms.
From the horrible bronchitis my petri dish children gave me.
From running around this week trying to get the house back in order after the out of orderliness brought about my the no-heat for four days thing while taking care of very sick children and very sick self and interviewing those 40 students.
Yes, I know, deep breathing would help. But every time I take a deep breath I cough.