Fixed it by reinstalling my headphone drivers and reconnecting all external cables (some of them in different USB ports). It's all good now but apparently my mousepad (RGB) stopped working. But whatever, it's not like I need it that much anyway. Going to try to fix that later.
Thank you, guys!
PC was working just fine but I took it outside to clean the dust a little with a can of compressed air. Nothing extreme at all.
After plugging everything back and turning the computer back on, I got a BSOD (usbaudio.sys, minidump).
Now, an USB icon (safe removal prompt) is constantly...