Hi
I'm Elizabeth, I'm 28
I noticed a hard lump under my chin (near the start of my neck at the front) about 5 days ago. This came up very suddenly and doesn't move when touching it. It doesn't hurt but can feel slightly tender when I stretch my neck. I'm really worried as it's a hard lump and doesn't move. I have felt slightly out of breath today which is not normal for me. I was just looking for advice really.
Thanks