feeling yuck

I don't know if its still from the weekend or if im getting sick! I sure woke up feeling like hell. My guts are all twisted, I didn't want to get up for my run either! I did though cuz I just laid there thinking if you don't get up your gonna get fat...What the hell is wrong with me!? So I did, I got up and I ran, I only ran 4 miles though which puts me at only 12 miles for the week SUCK! I should have at least 18! I am so exhausted I just want to sleep, I actually feel like I have no strength left. How weird to feel like everything has been sucked out of me.