Cold/Flu/Allergies?

Monday, I woke up with a really sore throat. It felt like I had swallowed razor blades. I could barely talk.

Then yesterday (Tuesday), I left work early because standing for more than just a couple of minutes was draining me of energy and I had really bad stomach pains- it felt like World War 3 was going on in there (it was not bathroom or menstrual realated). Throat wasn't as sore, but sinuses were little conjested. My head felt fuzzy/dizzy- like when you take medicine that makes you drousy.

Today is Wednesday, and I had to miss work because I feel light headed and dizzy still. My stomach doesn't hurt at all today. Like the past 2 days, I do feel really drained when I walk up/down stairs at my house.

Not sure if I have a fever or not, I have misplaced the thermometor. I have never had the flu or strep throat. I usually get bad sinus infections or colds when I do get sick. But I'm not sure what this is. Any Ideas?