What I meant by "invisible lump" is that although there is a big, squishy lump on the floor of my mouth, I can only feel it, not see anything noticeably different in my mouth when I look. Sorry about not being clear. And I do have one large lymph node in the left side of my neck as well as one slightly smaller in the right side of my neck. Plus I've noticed three small red bumps to the left of my left tonsil, but they came up within a matter of days, so I hope they're nothing to be concerned about. I think what bothers me the most is that I don't have any symptoms besides these lumps. I don't have ear pain or the feeling of something stuck in my throat, and I haven't been hoarse at all. There's just these lumps that won't go away. If you wouldn't mind my asking, do you know how fast it typically spreads(since I have found the one lymph node in my neck in mid-June it feels only slightly bigger, but not drastically, and the lymph node in the left side of my neck popped up literally over night and doesn't appear to feel any bigger at all)? If there is something in my mouth and it has spread to the lymph nodes on both sides of my necks, wouldn't I be having some sort of symptoms by now? And for anyone that has had lymph node involvement, do they grow fairly rapidly or take months and months? I'm trying not to stress out before I see the ENT, but I'm still worried.