Tumors in the sinus - Symptoms

A mass was discovered in my right sphenoid sinus and I'll be going into surgery soon to get it removed and a diagnosis of what it is. The ENT listened to my description of my symptoms and does not think they are related to this mass. As I read about all the other important structures in this vicinity, I can't help but think this mass IS related. My best guess is that this is either pressure related to the mass' size and location, or it has metastasized into a adjacent region. I just wanted to see if people with cancer or tumors in this area have had similar symptoms.

I'm getting a throbbing or pulsing sensation. It is not related to blood pressure, or heart rate since it's so quick and I've taken my BP during the symptoms. This pulse almost feels like when you hit your funny bone, but it originates in my head. I can hear it in my ears, feel my eyes move. Or at least it affects my vision I often get the sensation of numbness in my mouth and tongue, and even in my hands and feet. I've even felt this shock/ numbness in my whole body at times. This whole body feel is sort of new and makes me think the symptoms are getting worse. These pulses happen in a group between 1 - 6 pulses within about a .5 to 1.5 sec period. each group can be followed by another set and sometimes a third. About 2 - 8 groups per minute. Not every minute but almost. I sometimes feel a little nausea, almost like a vertigo since my world momentarily shifts a little. It's very distracting. OH.. and I've noticed that when I startle.. from a loud noise or if the car hits an unexpected pot hole or something like that, it's like every neuron in my body fires..like I've been shocked or something.

If this sounds familiar to anything you've gone through I'd appreciate talking to you, finding out what was causing your symptoms. Maybe after the surgery if it continues, I'll have a lead on where to look next. Thank you in advance.. Tom G.