Why does it feel like I have a ball in my ear? Where I put my earrings.
it hurts when I touch it
That's scar tissue built up around the hole. ;-)
It's scar tissue from the ear piercing. Nothing to worry about. Sanitize your ears and keep them clean.
You need to get that out. Massage it with Neosporin for a couple days and then try getting it out. It's probably from not changing your earrings enough