Hi guys wondering if anyone is able to help me. I'm going to the doctors tomorrow but in the meantime.. I've had this lump where my skull joins my neck on the back left for maybe a couple of years. Used to be quite small but I've noticed in the last couple of weeks it's grown quickly to the size of a walnut. It doesn't hurt but it doesn't move around, it's quite solid so I'm not sure it's just a cyst. If I pinch it I can feel it's quite deep. I rarely get headaches but when I do it's severe. Has anyone any experience of this sort of thing or anyone know what it could be?
Thanks!