same stuff has happened to me before, usually only when im really really ripped though, i mean like torn in half cant move shit, then ill just sit and stare, (if im alone) and ill hear a long ring, and then it will go away and come back, kind of like a dopler effect, and if im outside holy shit, i hear all kinds of shit, but mostly because im in my backyard and paranoid as shit, and my eyes arent the best so when its dark and ill look in a neighbors yard ill swear i see shit in their windows, then i get to the point where im too paranoid and go inside lol