I have enlarged, swollen, painful lymph nodes on the back of my neck, that came up suddenly shoulder and ear pain on right and white blister on tongue?

See a doctor asap: Hard to really answer without a thorough history, tests and exam. But i would not hesitate. See a doctor or an emergency clinic asap to prevent possible further spread of infection.

I suggest that: I suggest that you see your physician for an evaluation. Your symptoms may or may not be related. These types of things require a one on one personal exam and evaluation.