Vision disturbances...help

Over the last several months, along with migraines that come and go in spurts, I now get visual disturbances that also come and go and induce anxiety which just makes them worse! It is very tough to describe but I would say it is like my vision is "jumpy" or "jerky" for just a second or so and then I am left feeling a bit off balance but internally, not externally. Also, panic sometimes sets in which can mean heart racing, nausea, etc. They don't occur with any particular reason I can ascertain, sometimes I am sitting just watching TV, other times chatting with someone, etc. I do get headaches that I have medication for these seem to not be connected with any onset or frequency related to the headaches. I am seeing my Ophthalmologist next month so perhaps he will have some answers...I have RA and take 2mg of a corticosteroid every day as well as mtx, and a biologic to manage the RA. I often wonder if it is a version of the brain fog. I have found that taking my anti-anxiety medication calms me down and at least keeps me from panicking when this happens but I would like to break this cycle. any suggestions are welcome. BTW I have had a batter of tests, blood work, CT scans etc. to rule out anything else.
Thanks for any advice! Nan