Cancer Survivors Network

I may post this on a few boards to see what response I get as to this scary and troubling symptom...

Over the past few days, some new and troubling symptoms have shown their scary face... One, not so new, but making its presence known more is the very large lymph node on my neck, immediately below my left ear (in that space just behind the jaw but below the earlobe) it has been there for months, smaller, but hard and firm. Now, it is the size of a large marble. It does not hurt itself, but my neck is becoming sore I've realize, from holding me head funny now when I sleep trying to get comfortable with it. The second scary symptom, and this is in the last two days... my gums are bleeding. Like REALLY REALLY bleeding with pieces of tissue coming off in patches! I was just at the dentist two weeks ago and he gave me a PERFECT score on my dental exam, no gingivitis, nothing, nada! Said I have perfect teeth and people like me put guys like him out of business! So, I know this can't be sudden gum disease! What in the world is it? Anyone else experience something like this? Perhaps I should make a separate post about that to ask? Its tremendously scary!