I have recently gone through another battery of tests (also in 2007 with no findings) to diagnose MS. The MRI showed no signs of lesions in my brain or spine, but did show a slight mucosal thickening of the frontal, ethmoid and maxillary sinus indicative of chronic sinusitis. Could this cause MS like symptoms, such as poor balance, coordination difficulty, visual perception, loud ringing helicopter noises in the ears and muscle weakness?