Strokes can cause a variety of symptoms. When some folks have one, they literally go unconscious and lose their speech. Others can suffer from one slowly- they don't lose consciousness, but their eye sight gets blurry, sometimes heart starts racing, numbing and tingling in the extremities, confusion and loss of time (my poor sister has had mini strokes since childhood, just awful to witness, and she's had many), paralysis can and usually occurs on one side. Without hearing her phone call, it's hard to say which medical issue, if any, happened here.
I, too, was wondering about drugs- even a prescription drug can cause a bad reaction for some people. Someone else mentioned those edible thingies that can cause manic episodes in some people. I also mentioned my friend who had a bad reaction when the pot he smoked was laced with angel dust or whatever it's called (sorry, I don't smoke it and it's been over 40 years since that episode). This could be the case for sure.
I just feel bad that she was trying to get to the airport- that's what makes me wonder if she suffered a stroke- her confusion and panic.
Hopefully her family gets answers soon. So so sad that she drove around and didn't think to get medical attention. Poor lady.