Um, I realize this might be an odd question but...I've seen this black orb since I was in middle school that follows me. I've gotten my eyes checked and glasses changed. I see it at night and in daylight. I see it inside and outside. It's by no means harmful or bothering me. Just raising my curiosity to what it most likely is. Any idea? If you have links on your hypothesis I'd be happy to read further on the topic. Thank you for your time as always~!
I would've suggested it as possibly a daemon (not to be mistaken as demon), but daemonic beings are known for not revealing themselves except through their actions and good deeds for an individual. Never say never I suppose. I would recommend trying to make passive contact with it.
Most likely it's a Demonic entity. A very easy way to contact the Demon is the Ouija board. Since it has been following you since your young age I believe you should try to contact with it... It may has something important to tell you.
I agree with the above posts on trying to communicate with it. It could also be your own negative energy being carried around, and following you. Perhaps something happened to you at a young age that you have not recovered from, so instead of internalizing the negative energy, it could attached to the outside world, sticking with you. Just a theory of mine. But yes, try any means of communication, and if it talks back, then it's not your own energy.