Thank you for sharing what took place with us, Peter. I know that none of our pain over the loss of Lynne even begins to scratch the surface of what you are experiencing, but as you may have read, pretty much everyone who has crossed paths with Lynne (in the flesh or online) are reeling over this, because anyone who knew her knew what kind of a diver she was.. And that makes me (and possibly others) feel much more human & vulnerable than I felt the last time I went diving, despite training and a bit of experience..
My first thought was medical.. My second was that I need to get into better shape, but of course, Lynne appeared to be in great shape. You just never know, I guess..