Lump on Side of Neck
Recently I've developed a 'lump' of sorts towards the side of my neck. It feels like a swollen muscle, but it's also very hard and somewhat rough feeling. I cannot move it, but the muscle on the other side in the same area can't move either, but that one's normal. I can move my neck normally, and the 'lump' is very tender. I don't think it's a swollen lymph node, either. Is this just a 'knot' or strain, or is it something worse?