@danielthor Sometimes when I stand up really quickly my blood pressure drops and I almost faint. The tinnitus usually goes silent for a second, but that's likely due to going partially unconcsious, like when we drift off to sleep and the tinnius fades away. Scary nonetheless.
Maybe light-headed is not the best word... It's more like my head feels like in a bubble or underwater for just a second, and then the sharp fleeting T kicks in