I have a herniated disc C-5-6 ( from MVA) almost a year ago. Today, I reached above my head w/ my right arm; my neck made the snap/pop noise. Immediate pain, headache, nausea ( which minimized); however, Since I have noticed, the crown of my scalp ( the area of a baby s soft spot ) is now much warmer to the touch, then the surrounding scalp. And I still have the headache... do I need follow-up ASAP?