Not exactly my situation but some similarities. I'm fortunate to be financially secure. My wife died in 2005 and all my local friends have either died or moved away. Compared to many on this forum I'm in pretty good shape. I don't have any constant pain, just some that comes and goes, but I can't do anything physical without bringing on pain. I've become social phobic which makes it hard for me to deal with people, especially on the phone, so I put off things that require making an appointment, etc.
When I read of all the pain and suffering on this forum I sometimes think I shouldn't be here. But, then I realize that at my age I'm subject at anytime to have a stroke, or fall and break something, either of which would put me in an institution and that would take away my ability to CTB. I also have two forms of cancer for which I chose not to be treated. I'm mentally ready to CTB, and have my means of choice, but I can't get over the problem it would cause my son who lives out of state.