That's dedication! Think we've had the deck for about the same number of years too. Love having a car that long as you really get to know them inside out, and know it's history. DD had two previous owners which were husband then wife (so technically only really one owner) when we got her and since then my late wife then me. So know everything about her. Nice to see someone else owning one of these civics for so long too!
Really hope you get to the bottom of that blooming noise mate!