One of the challenges in first aid treatment for stroke is “is it ischemic or hemorrhagic?”. The symptoms are similar, but the treatments almost the reverse of each other. Do you want to increase clotting to stop the bleeding, or decrease clotting to keep an existing brain clot small?

Sometimes (for example if it would take hours to bring the patient to a MRI/CT machine) an educated guess as to the answer is the optimal strategy.

Wow, that's really good info. So I guess the answer is get to a hospital asap where they can do some imaging.

"Avoid other pain relievers such as ibuprofen (Advil, Motrin IB, others) and aspirin, as these medications may increase the risk of bleeding."

Wow. Did I misremember and he said Tylenol (acetaminophen)? This is bothering me now, I don't like to carry bad bits of wisdom around!

Prescription Ibuprofen actually carries a Black Box Warning about increased stroke and heart attack risk in general. The OTC version never got the updated warning.