Hi i had an MRI today as i keep feeling really tired and dizzy, this has been going on 4 months. During the MRI a pressure built up inside my head and and eyes it felt like my head was going to explode. I am not a wimp by nature but i had to push the emergency button to stop the scan. This was the last scan and i was only 40 secs away from completion. I looked on search engines and this seems like an unusual MRI experiance can anyone shed light???