The Dr gave me a prescription for Hydroco/APAP 5-325. I took one last night and have not been able to sleep. I felt very bad all night, my chest, left arm and neck hurt and I just did not feel good. I just want to know more about it. I am not taking it anymore, but I still want to know about it. My back hurt when I laid down, that alone would not let me sleep, let alone the others.