Hi everyone. I'm a 21 year-old girl, and I used to smoke about 20 cigarettes (with occasional joints and cigars) for eight years. I have now quit - and haven't smoked in over 18 months.

However, i've found a lump inside mouth. It's a perfect half-sphere shape, and about a centimeter in diameter. It's located about a centimeter underneath my lower lip, on the inside, and it's underneath the skin. It' doesn't hurt at all, and it's definitely new - it probably appeared sometime in the last two weeks.

There is no history of cancer in my family, although the female members of my family (my mum, auntie and cousin) have all suffered with numerous large & scary (but harmless) cysts in the arms legs and breasts. I know mouth cancer is rare for a girl of my age, but I have a bad feeling about this.

I'm going to see a triage nurse about this tomorrow because my surgury is really busy. I have an appointment with a proper doctor (for something else) in ten days. It's very easy of me to think it is cancer, but is there anything else it could be? Thank you for reading this - I haven't slept in days.