I Have This Little Lump In My Vagina. It's Pearly

I have this little lump in my vagina. It's pearly shaped. It's like in the very bottom of the vaginal opening. I had it for more than 2 months now & in the first month, it was kind of tickly when I would touch it. And, everyday my vagina would become itchy, it got very uncomfortable. However, the itchiness went away after the 1 1/2 month so I went to check it again but the lump was still in there. I have no idea what it is and i'm freaking out about it!