Malaise

I'm not quite sure what my problem has been recently. Ever since getting sick on vacation I've been rundown and exhausted regardless of how much actual sleep I've gotten. I can't get up in the morning no matter what I try. I also seem to just not be able to get/stay healthy. After recovering from my various ailments that required antibiotics, I still have no energy and I'm still sneezing and stuffed up. It's almost as if I got better for a day or two and then picked up another cold that won't go away. I understand that the weather changes can cause this, but at some point you'd think my body would figure out what to do.

Before you ask, I take daily vitamins and also vitamin C supplements. I also drink tons of water daily, less so on the weekends. I know I need to exercise more, and I know I need to eat better, but come on body, work with me a little. Maybe if I took a full week or two off and did absolutely nothing but rest I would start to feel better, but who has the time for that?