You don't say how recent your surgery was, but as someone who had coiling for a ruptured anuerism in June of this year I can tell you that the fear was overwhelming for the first couple of months I would say.
However, as with most things it does diminish in time, thankfully, although I do acknowledge that I am not dealing with unruptured anuerisms so my case is different to yours.
I suffered multiple strokes at the time (thankfully with little deficit) and that recurring was/is my main fear. The fear was so all-consuming at first that I made a conscious decision to really LIVE with the fear and get on with each day, rather than be burdened and paralysed by it.
I hope that makes sense, and that it is of some help to you.
All best wishes,
Aneurysm burst and caused a SAH on June 17th 2010, coiled on June 18th 2010 at QMC Nottingham.