Rockhound, I feel for ya, I went through the same thing. I didn't have an IMO either but I finally got one, actually two, and they got my claim granted. If you can see if your treating physician will write you an IMO regarded the connection. I handed my C&P exam to my VA doctor and he said, "Hell no" that is wrong what the examiner put in. He was more than willing to contradict the examiners opinion. Hope it works as well for you as it did for me. Good luck, we're all with you.
jay