I've been having chronic sinus/allergy issues for over 6 mos. This has been accompanied by extreme dizziness with occipital pain. Had my septum and sinuses worked on and had relief for about a month and a half after. But now the dizziness is back with neck pain and some tingling in my left arm. Seems like having lot of trouble focusing, especially on computer screen or tv. Also had a ENG which showed a square wave in my eyes. But I have already had MRI and CT scans of brains with no abnormalities. Neurologist says neurological tests were fine. Could this dizziness be related to sinus/allergy/TMJ, etc?