What's wrong with me?

A couple weeks ago, I got what I assume was just a cold. This was odd because I'm hardly ever sick. I haven't been sick in about 2 years. I only had a runny nose, it was horrible at first, but after a couple days it started to get better, and was standable, but never completely went away. Then, a couple days ago, I started feeling like I had the flu, I was freezing even though I was under a blanket in an 80 degree house, my head hurt, I was light headed, I was congested, and I was extremely weak. I went to sleep, woke up feeling the same, but worse, and with a sore throat. It pretty much completely went away except for the sore throat later that day, and was fine until about 4 in the morning when I started feeling terrible again. Once again, I woke up the next morning feeling much, much worse, and my throat was much more sore (today), it went away a little bit ago, but my throat is much more sore, and I have a watery discharge in my left eye, and it feels a little sore and sensitive. Any help?