What are the effects of snorting lithium?

I was taking 600mg per day. Then was taken to 300mg for five days and removed completely. I think that perhaps that was too fast.

I am experiencing nausa, excessive thirst, headache, insomnia and rapid thoughts.

I have to tell you that I was taking the 600mg with 10mg of lexapro, my meds were changed to 5mg lexapro, 150 wellbutrin and 600mg of trileptal. So the withdrawl could be combined with taking the new medications as well.

Basically I feel like I'm going to die, I hope that it doesn't last much longer!