Not sure if anyone is still in here but this is OP. Here is a pastebin link from a few of the emails that weren't from auto-generated indian programmers. I downloaded one of the attached files and followed one of the links to a personal site with my phone.
I am sure I overreacted but they did make me concerned when my machine was running slow. I had upgraded to El Capitan on like the 2nd. SOme behavior preceded that but not having fans run and machine getting hot is fairly normal on mac.
IDK maybe I am just paranoid. Trying to find the TCP DUmps. From before I formatted the system. I am posting them because a few people said that there was no real evidence. I am sure I overreacted and maybe should look into it more, but the emails happened.