I did, indeed, spend midnight of New Year's Eve in the emergency room. In fact, exactly at the stroke of midnight, I was getting blood drawn from my right wrist. I remarked to my phlebotomist that the clock had just struck midnight but he didn't seem to care. Just another night in the ER I suppose. At least I'm not likely to forget where I spent NYE 2013.
Anyway, the ER doctor thinks my extreme shortness of breath was "probably" due to the Epivir. My blood oxygen level measured low--although not so low as to require intubation. He told me to stop taking the Epivir immediately and see if my situation stabilized. So far, today, I do feel slightly better.
As always, thank you for reading. And happy new year.