Hole In Heart Condition_symptoms Is It Possible My Heart Murmur Can No Longer Be Heard Because Of The Large Hole In My Heart?

Is it possible my heart murmur can no longer be heard because of the large hole in my heart? - hole in heart condition_symptoms

I always had a heart murmur. After I suffered 2 episodes of TIA, the hospital said it had found a heart murmur. I saw a specialist and found a big hole in my heart. Could the big hole that my breath no longer be detected?