Image Credit: NASA. Asked by Jon Gray. An impact basin known as Valhalla is Callistoâs largest crater with a diameter of over 300 kilometres (190 miles), while concentric rings that surround it extend out to 3,000 kilometres (1,900 miles) â nearly large enough for the entire USA to fit within its boundaries.
Somewhat surprisingly, the second most common cause of tinnitus is head and neck injuries. In a clinical study of 2,400 tinnitus patients at the Oregon Health Science University, more than 12% reported that their tinnitus had been caused by head or neck injury. (1) There are two broad categories of head and neck injury, Traumatic Brain Injury (TBI) and whiplash.
Cause of Tinnitus: Muscle Spasms. Hi @VaR - I'm sorry to hear about your whooshing sounds. For what it's worth, you and I both seem to suffer from very similar sinus/Eustachian tube issues, and when I bend my head over, I, too, hear a slight quiver in my ear that comes and goes pretty quickly.