Fair warning. At that moment, your players will probably assume you really were dead and your sudden explanation was an ass-pull. You are going to have a much easier time simply telling your players that you are taking a break from that character for (reasons), and he will be captured/missing in the meantime.Taking a break, but I definitely want to go back to play this character in the future. DM is fine with it, and we want to give the other players this "OMG, I thought he was dead!" moment when I come back.
It immediately solves the "they keep looking for me" problem.
Pulling the wool over the eyes of the other players could be a negative experience for them. Seeing the clever explanation for how your character is brought back into the campaign later, knowing that you faked your death because you told them months ago, is much more likely to be a positive experience for them.