Hi aw3sk3r,
Welcome to the group! When I have double vision I usually get that dizzy feeling. The next time you have the double vision, look straight into a mirror. You may see your one eye ball looking in a different direction and/or one of your eye lids may be droopy slightly. If it is, put a cool cloth on your eyes and rest them for a while. They may feel and look better for a little while. Worth a try. Take care.
Hugs,
Pat