When I Was Appox. 3 Or 4 Years Old. I

When I was appox. 3 or 4 years old. I was playing with my dads tools and stuck it into an electrical cord. I saw a really bright light, passed out and woke up later with a black hand. It was like a sausage link burned on the grill. I have had so many medical problems in my life so, could I still be affected?