hey, I don't know if you ever found out what that lump on your neck/shoulder was, but if you did, what was it? I have one too, right where the neck meets the shoulder, but have not ever had any injury. Anyway, i hope evrerything is okay now.
I'm also curious, as I have one on my shoulder and I've been doing zero physical activity. :S
Hi im 19 and experiencing the same thing in between my neck and shoulder area. The lump feels like ball.. I can feel its spherical shape and can move it around. Ita not painful, but if anything comes in contact, i can feel some pain. What is it?