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.
Allergies and the sinus pressure connection. Allergic reaction to the environment is a major cause of sinus pressure. Pollen allergy being one of the most common. Excessive sinus drainage can also accompany an allergic reaction. The home environment can be the cause of allergies. For example, animal dander, house dust, dust mites droppings, cleaning and washing chemicals.