Hi, 48Hours ago I felt sudden pain in my back. I feels, as if I have sore muscles on my upper back (just below the nape of my neck). Any sudden movement is very hard for me and if I am in the wrong position, it really hurts. Adding to that: It is very hard to take a deep breathe and to swallow food. My Question: Should I go to the doctor immediatly or should I wait till next morning? And what could these signs indicate? Emile (I m male, 27 years old, a bit overweight, but I started going to the gym since two months and I practice badminton for three years now)