Movement sensation in peripheral vision.

Hello Sir, For past few months I am having strange sensation.  I feel that things in my peripheral vision are moving.  But when I look at them that are steady.  It happens when I am walking as well.  It feels like everything is changing its position as I am changing mine.  When I move my head, I feel that things in my peripheral vision are also moving along.  It has started happening in all times now.  I am able to sleep and do all other activities.  But this sensation is making me crazy.  I am done with my eye exam and it came out to be normal. I had neurologist appointment as well. But he diagnosed an anxiety. I am insisting him to do mri. But he is convinced that this is nothing but anxiety. This is really disabling some days and I am not able to focus on anything. Except keep on thinking about this.Please suggest what this could be?