are you on cymbalta or did you take someone elses? It can have a lot of side effects, all of which you mentioned as I had them too. I really don't reccommend you take someone elses as someone else here mentioned, it can be detrimental to your mental health state especially stopping cold turkey. It is a really strong medication that is super hard to detox from.
My son was on 60mg for 3 months. He was nauseus and unstable the whole time. His P-doc told hin to take 30 mg a day for 7 days, then stop. A week later he goes on a rampage, tears up his appartment, drinks (I think), goes for a drive and dies in a rollover crash. The stuff is poison. Try to get off slowly, with people around that can help you or take you to the hospital if it gets unbearable.
Take it in the morning and ease into it :)
Ive got the cold and hot shakes too, i just started it yesterday. I hope this gets better soon
i dont know what to tell ya!