Hi, sorry to hear you are experiencing this symptom,,
I too had that type of discomfort before my surgery last Oct.... It started within the last year of my diagnosis, I was w&w for three yrs before surgery without much symptoms till the last year then things went down hill pretty quickly.
It may be related to the location of your tumor, I don't know as I am not a dr,, but I think mine was,,mine had grown into the CPA and was pressing on my brain stem in the last year,, I think, but was not told as much, that that is one reason my symptoms worsened. Mine was approx. 2.8cm at surgery and the location had a lot to do with my symptoms,, that last year I was mostly on the couch or chair as I felt really bad when moving about,,even quit driving for several months,,
So I feel for you,,I think it is a little different than the "wonky head" we speak of,,,I still get that occasionally but not as often,,talk to your dr and try to find out location of your tumor,, you may also want to send a copy of your MRI cd to other drs for second opinion on treatment,,I imagine you have seen on here that one such place for this is House Ear Clinic in Los Angeles ,, I sent one there and it was wonderful help/advice,, best of luck Jane