Back pain that lasts more than three months (chronic) is less common than acute pain. Back pain often develops without a specific cause that your doctor can identify with a test or imaging study. Muscle or ligament strain. Repeated heavy lifting or a sudden awkward movement may strain back muscles and spinal ligaments.
Visit your doctor.: Sinus pain can be very significant, significant enough to raise your blood pressure. You should visit your doctor to make sure that your headaches are really just from sinus pressure, and not from something more serious.
According to Wrong Diagnosis one of the causes of head pressure can be a sinus infection. Sinus infections are very common throughout the year, with an estimated 37 million cases every year. Often they start out with a stuffy nose, but symptoms depend on which sinus cavity is infected.