I am having visual disturbances in both eyes.i am seeing millions of tiny black dots in my vision in both eyes they are like tiny cells moving under a microscope (not floaters) vision is also getting fuzzier and theres like a flickering light in my vision in both eyes.i also having occasional nausea and a tremor.also dizziness when walking and pressure in both ears.i have seen 3 opthamologists who cant see anything wrong and doctors just keep saying stress.i am convinced i have a brain tumour