In the span of around 4 months I've been hearing strange things that no one else around me hears. Most notably was about a month and a half ago. I would be sitting in my room painting, playing on my phone, folding clothes, random miscellaneous things. Out of nowhere I would start hearing snippets or bits and pieces of what sounded like an angelic choir. It was usually very quick and left me confused. I checked all the TV's, none were on. Asked my sister if she had been listening to choir loudly for some reason, but she said she wasn't listening to anything. This happened three or four times at random moments. It was never before or after anything significant happened. The other times were just a few weeks ago. I was standing in my kitchen with my sister. She was watching a video on YouTube and I was standing over her watching as well. All of a sudden I started hearing the low chime of what sounded like a very large bell. This happened three times in the span of a minute or two. I would hear a couple of bells making noise, it would stop, and then start up again ten or so seconds later. I asked my sister if she had heard it and of course she said no. I replayed part of the video that was going on while I was hearing the bells to see if it had been in the background of it for some reason, but as I thought there were no bell sounds edited into the video.
Aside from these, I have heard disembodied voices talking before many times. Most of the time it is not really stuff that makes sense or is relevant to what I was thinking or doing, nor relevant to my surroundings. A majority of those I could tell came from inside of my mind, internally, but I definitely have heard someone whispering in my room before, which seemed like it was coming from near the end of my bed or somewhere around that general vicinity. To conclude this, does hearing these things like the choir and the bells sound like anything of significance, or just my own mind screwing with me? As always help/opinions are very appreciated.