CPU Architecture. The processor (really a short form for microprocessor and also often called the CPU or central processing unit) is the central component of the PC. This vital component is in some way responsible for every single thing the PC does.
A. Stop the tonic water! Quinine gives tonic its distinctive bitter flavor but it can cause tinnitus, especially at high doses. Hopefully the hissing sound will gradually go away once the quinine is out of your system.
There are also 'no quinine' brands of tonic water available if you are one of those who cannot tolerate quinine. Tonic water with quinine may be unsafe if you are on some kind of medication. It is likely that the quinine may interact with the other drugs and result in some very dangerous side effects.