Yes, I went for blood tests for six months or so two years ago. Not for liver, or kidney function, though. Great, I am healthy. now what? I was taught quite a bit about the problem I was currently experiencing, which was somewhat helpful for me at that time, but was also very expensive and ek, needles yuk. I guess I would go back in for more testing if needed. I'd rather donate blood and do my own research, but at least I now have a basis for understanding