Welcome to MS. We're sorry that you're here, but we're glad you found us.
I was not abused by a priest, but I wanted to tell you that I have gaps in my childhood memory surrounding my abuse as well, as do others here. In this regard, you are not alone.
You will see it referred to around here as dissociative amnesia. Read and post and share. You're among brothers.
But he grew old, this knight so bold / And upon his heart a shadow / Fell as he found / No spot on the ground / That looked like El Dorado.