What Causes Dull Headaches With Imbalance Of Body?

I am having dull headaches, morning and night, as well as slight lack of sharpness cognitively, as well as a slight lack of balance. I am having slight nausea, as well as feeling that 'i'm going to be sick.' My doctor did a test of Papilledema and found the optic disc in good health. However, now that I find that Papilledema isn't the sole indicator of a tumor has made me insecure. Is there any other symptoms I should watch out for, besides the headaches?