You are experiencing detox, you are having normal symptoms. If you are healthy otherwise, it will not kill you. Try to relax, I know it's hard. Know that it is the drugs, you are doing the best thing you can be. Drink, drink, drink, force yourself. Try to move around and occupied. It will pass. You are getting your life back, it is so worth it. You know it is, or you would have never stopped. Hang in there, stay in the moment. You CAN do this. Keep posting and reading.