Kim, I hope you get past this soon. Glad your hours are better.
I'm not a health professional so don't take me seriously, but I've been experimenting on myself by taking vitamin D and I think it works. I don't take multivitamins though, as there's been some reviews pointing to negative effects. But you can't get much usable vitamin D from foods, it can only be made in the skin. With all the crummy symptoms, colds, & allergies that happen so often in the spring, it could be from a lack of sunshine, and vitamin D deficiency that has crept up on us over the winter. 1,000 IU of vitamin D at Wal Mart is only a few bucks, it's not a fancy expensive yuppie thing.
We finally started getting some sun here, and everyone feels better & is in a better mood.