Vaginal cyst?? Help!!

Okay so two days ago I noticed a small, hard bump on the labia of my vagina. It's painless and does not itch. I have not had sex for over a year now. I have no idea what it is, it's frustrating!! I did some research & it could be vaginal cyst. Can anyone please help me figure this out. What should i do? Do you know anything about vaginal cyst?? & are there treatment to get rid of it???