I have been having episodes off and on (twice in a few weeks time) where my eyesight changes to having an area in the middle of what I am looking at that is like when you stare at light for too long and things are not clear anymore. It is just in one part, the very center of what I am looking at and then on my left side, I noticed that it is like there is a ceiling fan running in the corner of my eyesight. My left arm gets cold and numb a bit too. I am 42, been on the pill for 27 years, I am wondering if it could be affecting me that way now. I feel fine, just a bit floaty when this happens. I am going to the Dr. for a physical July 5th. Should I be overly concerned with this?