Is COnstant Ear Ringing a Sign of a Tumor?

HI. What are some signs of a brain tumor?  

I have been battling these uncomfortable tension-like headaches for 3+weeks where I get pain in the lower part of my head.  I get these pulse-like sensations (like a nerve jumping) on my right side by the temple.   I also have been battling a cold/sinus infection which has left me much discomfort.  My right ear constantly pops yet when I go to the doctor he says that everything looks normal. One doc did say that my ear was a little inflammed. I woke up this morning with a rnging sound in right ear and it has not gone away.  Is this a sign of a tumor?

The ringing has not gone away.  And can you explain what those pulse sensations (nerve jumping) by the temple means?  I feel that on and off throughout the day.

Thanx.
Ness