Hi. I am a 55 year-old woman in excellent shape. I am 5'5" and 122lbs. I practice yoga daily. I am just starting to write my masters thesis and i am very stressed out. Sometimes when I get stressed out one side of my neck gets painful and stiff, and I cannot turn my head easily. This started happening last week. I took lots of Advil (normally NEVER take pain meds) and it got a little better, and I kept up my yoga practice. Today I noticed I have pain AND numbness on the right side of my neck. The pain starts at the right base of my skull, and radiates down into my collarbone. The numbness starts on the middle of my right ear and goes partway down my neck. The numbness has NEVER happened before. There is no tingling just partial numbness. I still have some feeling. This has not altered my range of motion in any way. Should I see a doctor? Should I be concerned? I am a little scared.