Eye Lump.?!?!?!?! HELP.!!!!!!?

Ok Soo, I'm Freaking Out Because Earlier I Was Examining My Eyes And I Lifted My Left Eyelid And I Saw A Small Bump Right Under It. It's Like, On The Line Of The Eyelid. I Freaked Out Because I Have No Idea What It Is!!! It's White, But Also Very Small. PLEASE HELP!!!!