Anxiety does indeed come with the territory. I think it's a control thing and until we finanlly give up the ghost, we harbor a sense that we can somehow influence the outcome and make a difference. It probably has more to do with who we are than it has anything to do with the addict.
I refuse to take anything to control anxiety or help me sleep. Sooner or latter, we all crash and tomorrow is another day.
I think this forum has probably prevented a lot of heart attacks in the making, because venting is allowed and no one judges or blames.