Thank you @johnbishop for the kind welcome and video! That was kind of you to take the time to post it! I've been doing a lot of research, but this video did a nice job of showing the anatomy, thank you! I'm glad I found this group, as I'm hoping to learn from others experiences. Unfortunately, the docs I've seen this far are stumped, and I've had to keep pushing to try to get help - it seems if they don't know the answer, they just give up. I thought they would at least refer me to someone else, but I've had to instigate that myself, which is a slow process also as I can't really make phone calls/appointments during the work day. Anyway, thanks again!