We've never had a chance to chat, but I wanted to echo what everyone else has said on this post.
I suffer from progessive CNS lupus and also have antiphospholipid thingamajigs (sorry) lost the technical term....see, it happens to me all the time. You do need to get checked out, perhaps by a neurologist or two. It's nothing to ignore....when your body talks; it pays to listen.
As Marycain said, it could be a lead-in to TIA - Transeschemic Attack; which is what happened to me.
I wish you well, and hope you find answers that will calm your fears.
"I believe that friends are quiet angels who lift us to our feet when our wings have trouble remembering how to fly." - unknown