I pulled something in my neck, and need help diagnosing it.?

Do not do any exercises suggested on this site. You always have a picture before you do a new exercise as the picture promote proper modeling and usage. You could get injured or have more pain. When you do not exercise your muscles get weak and tight and cause you pain FInd some neck stretching exercises on the Internet. Make sure your understand the Instructions and as said before make sure you have diagrams or pictures. If you do them routinely is will lessen the headaches and strengthen the neck.