So for the last few weeks I've been getting blurry vision. It comes and goes and usually clears when i blink a few times. I used to have headache few times a week now only once a week I'd say. I've had a recent mri within the last year due to a blood clot in my brain. Apart from the blood clot which is now clear everything else is fine. Had a ct scan for a thunderclap headache in December and that came back clear. I used to get a dull achey pain in back of neck near base of skull but that seems to have died down. Anyone have any ideas what this could be? I'm worried it is a brain tumour but because of the recentish scan maybe not..