Sorry to here of the panic attacks, I know they can be terrifying. I believe that what you experienced was related to the panic attack, rather than stroke. Panic awakens your most intense sense of fear, which can lead to many unusual symptoms for those going through them.
Your fear that you could have had a stroke goes right along with that thinking, as it would be "the worst thing that could happen" in that time.
Strokes actually cause damage ranging from very mild to life threatening, and although we have "mini" strokes, these are not that mini, if you have one yourself. Any damage that you would develop from stroke would not disappear soon after the panic attack. In fact, symptoms are known to get worse for the first few days for many of us.
I hope you find a way to overcome the panic attacks, have you tried any medications for panic disorders? Many people find great relief from medication.
The doctor gave me ativan, thank you for your input.