Gum cancer symptoms? I have a good sized solidlump on gum line where my left bottom wisdom tooth was 9 yrs ago. Swollen glands & pain in neck jaw & ear

Not necessarily. But your problem needs to be examined and treated. Could be something simple, but it can also be more serious.
Probably infection. You must see a dentist. Xray can reveal a cyst, residual root, other infections from teeth, or cancer. Check it out.