I just talked to the ER and they didn't really have a way of helping me, because the symptoms were a bit too unusual.

For about a week now I've experienced fatigue, nausea, uncontrollable shaking (whole body), and very bad appetite.  
Last night I slept ok, but only after 4 nights of little to no sleep.  
Tonight I feel like i'm burning up, but don't have a fever.

I had vitamin and mineral levels in the blood checked almost 2 weeks ago, and everything was as it should be there (I check twice a year because I don't eat meat or take any suppliments)

I've suffered from anxiety and depression basically all my life, but never experienced this before. The reason I'm questioning if it is my mental illness acting up, however, is the fact I had a burst of depression last weekend which was so bad I ended up harming myself (first time in over a decade)  
I've been on antidepressants for a while.

Any thoughts?