same symptoms of stroke but they'll be brief you know 10 15 20 minutes would be typical duration of symptoms and we know it's at EIA by taking a picture and seeing exactly what you said there's no injury if the symptoms last for 20 minutes and we take a picture and we see that there's a little bit of injury then it's a stroke just like a heart attack versus angina a heart attack is when you damage some heart muscle and Gina's when you've got chest pain because not enough blood flow to the heart but you didn't damage any heart muscle