The general salary range can be from $35, 000 to $100,000 annually, depending on certif â¦ ication, etc. The hours involved per week can also vary from a normal 40 hours to 60 plus hours weekly, which will also impact how much per hour they make.
The most common causes of neck cramps or spasms are torticollis, sprain or strain, and muscle spasm.Other possible causes, such as gastroesophageal reflux disease (gerd), are more rare.he most common causes of neck cramps or spasms are torticollis, sprain or strain, and muscle spasm.
Systemic illnesses like diabetes, anemia (low red blood cell count), kidney disease and thyroid and other hormone issues are also potential causes of muscle spasms. Diseases of the nervous system, such as multiple sclerosis or spinal cord injury, can be associated with muscle spasm. Smooth muscle can also develop spasm. When a hollow structure filled with air or fluid is squeezed by the muscle spasm, significant pain can occur since the fluid or air cannot be compressed. For example, smooth muscle in the intestinal wall can go into spasm, causing waves of pain called colic.