If your sure you have leaky gut then I don't know if cows milk would help. Goats milk may be ok, as autistic kids can tolerate that sometimes. Milk from Jersey or other non-holstein breed cows may also be ok, but the proteins in most holstein cows can cause a reaction in people with leaky gut.

I also don't know my blood type. Its been probably 8 years since I've visited a doctor or hospital, but I think I might be type AB or O. I'll ask my mom next time I call her, she probably knows.