Hi There, I Have Multiple Asd's ( Holes In Heart)

Hi there, I have multiple asd's ( holes in heart) and pulmonary stenosis, as a child I suffered with severe migraine with aura and went on to have hemaplegic migraine with stroke like symptoms. I've done some research and have found that most say I'm prone to strokes and I've recently had severe headaches but not migraines continuously. Today's episode gave me a feeling in my leg which I have had before of heaviness, not feeling like my leg. It feels strange when I walk like it doesn't belong to me. It usually last for about 10/20 mins but I've had it all day. Do you have any ideas as to what it might be. I've a few theories but I'm no doctor. Please help as I've had enough now.