I was autistic until age 3 when I nearly died drowning in a pool and was no longer autistic soon after?

I am not looking for some phony "it was an act of god" or "a miracle" story, I was just wondering if there has been any studies to show whether a rebooting of the brain and body (i was legally dead for a little bit) or maybe just drowning in general has shown any positive results in autistic persons. Im not looking for solid facts because I know autism is still a bit of a mystery, just a connection like how scientists have found a correlation between microwave popcorn and cancer.