Help, what do I do??

Last week, I lost my earbud for an unknown reason. The last time I recall is when I put it back in my table and I was quite sure Im using only one and put back the right earbud I was using. Then, I took a bath and went back to see the right earbud gone? I dont really want to start up accusing everyone so I tried to find it everywhere but I cant. It made me more anxious but I tried to find it everyday but I still cant and I dont know whether I should trust my memory or not after a week had passed, it might've already been thrown away or chewed by rats.