Stayin' Home

So what is it, lack of caffeine, lack of alcohol, allergies, flu? Why do I feel so bad? In any case I am staying home from work today. I fell asleep immediately upon getting home from work yesterday, and have developed chills, fever, a cough, and a mild headache. Although I was feeling really good during the run on Sunday, I was starting to cough a bit. Not unusual after a run, but I think that may have been the start of whatever this is. I hope I'm not developing new allergies. That would be very annoying.