Even a subtle (undetected) heart arrhythmia can cause TIA'S. Ask your doctor about taking a beta blocker.
All the best.
Hello, sorry to hear about your dad. I'm 43 an had a sevral strokes in the past year. This past July I had to stop take Plavix of 7 days for a surgery i was going to have, It went well but when I woke up I have had a stroke, but after 24 hours all the sideaffects went away and the Doc's called it a TIA, (mini stroke)so things like that can happen, good luck