I have terrible pain & pressure in my head, and a whooshing sound in my ear,. I have a posterior fossa arachnoid cyst and had a endoscopic 3rd ventriculostomy to treat aqueductal stenosis 6 momths ago, but the cyst is still there and the pain is bad, yet my neurosurgeon says my brain is normal now, so I am looking to see if I should be examined by an ENT doc...