Hi.
I woke up this morning with a lump on the left lower side of my jaw, right along my jaw line. It is about 1/2 inch to the side and about 1/2 inch down from my mouth. I felt something small there yesterday and thought it was nothing, but when I woke up today, it was about the size of a quarter. It is moveable, firm, and causes discomfort when touched. Could you tell what this could possibly be? Thank you.