What Causes Cloudy Urine And Feeling Of Passing Kidney Stone?

I am a 34 year old female, 5'4 126 lbs and I feel like I have been trying to pass a kidney stone for the pass 7 days. I have been drinking a lot of water, my urine is cloudy, and I am not sure whether to go to the ER tonight or wait til morning to go to the Dr. I am in pain management for chronic migraines and my pain medicine is not helping at all. I have only felt like I have had a kidney stone once and the pain eased after it must have passed in 2 days. this week I have been nauseous, sweating, then chills. No matter what position I am in I can't get comfortable and the pain has been primarily on the right side and now the left side is hurting also.