Numbness/tingling
Vertigo/dizziness
Changes in vision
Nausea/vomiting
Weakness
Dysphagia
Dysarthria
Syncope
Vertebrobasilar insufficiency
Vestibular/otologic
Subglottic stenosis
Benign paroxysmal positional vertigo 
Carotid-cavernous fistula
Traumatic 
Sinus barotrauma
Infection