Depending on the cause of your compressed nerve root, along with where it's located, associated radicular symptoms may vary. But the most common include neck and/or shoulder pain, headache and sharp pain, weakness, numbness, tingling, or other electrical type sensations going down the leg (sciatica) or arm. Other symptoms may include impaired reflexes, weakness, muscle stiffness, limited motion, and-with cervical radiculopathy-aching or sharp pain when you extend your neck backward.