Recent mri due to headaches discovered brain infarction. could that be the cause of my headaches and is it possible to figure out when i had a stroke?

Not all strokes same: An MRI can tell a tremendous amount about a stroke, including approximately when it happened, the size, and the location. Many people have microvascular disease that leads to small strokes as they age, and they rarely have much significance. An acute stroke, on the other hand, is an emergency. Have a closer look at the MRI report and talk to your doctor about the details of the implications.

Yes: This most certanialy can be the cause of your headaches. I would say that when you started noticing your headaches is when the event occurred. The only real way to tell is for you to discuss this with radiologist who will look for the last normal(if done in the past) ct/mri and compare it to most recent to determine time line. But, your infarct likely began at the time of the headaches.

May/may not relate: Although headaches can be provoked by presence of brain ischemia, more often these are secondary to other mechanisms, and if the stroke is a remote event, likely no real relationship. However, you do need to figure out relevance of stroke to future additional stroke risks, and it would behoove you to evaluate blood pressure, cardiac status, potential of high triglycerides, homocysteine, and sugar.

Yes : Stroke can cause headache, however, typically most strokes are painless. You are young and i would be more worried about investigating the cause of stroke at such a young age. There are several causes of stroke in young that can cause headache as a symptoms from them. Please seek expert opinion.