Yuck

I am not feeling well at all today...and I can't figure out exactly what is wrong. Weird, I know. How do you "fix" something when you don't know what "it" is?! I wouldn't mind so much, but I'm running a 5K with my family in the morning to celebrate my mom's 50th birthday. And I really, really want to run a best time. I've been working so hard these past few weeks to improve my time. I do not need this right now! I'm hoping the next few hours bring a huge turnaround in the way I feel. I felt fine yesterday...and the day before...but not now. Aaarrgh!