Hi butterfly,
I am not sure if you saw them, but you got some excellent reponses to your last thread here...in case you did not here is the link before I go on.
https://www.healingwell.com/community/default.aspx?f=9&m=2559940
To answer your quesion...yes, benzodiazapines can cause you to develp both a tolerance and a dependency. However, if taken sparingly and on an as needed basis for acute anxiety episodes, you should do fine.
I do have to again suggest therapy if you haven't already tried this treatment option. It will help you to manage your anxiety on a daily basis...and possibly help you to avoid any benzo dependency issues, since you could end up needing less.:)
Best wishes and keep posting
S.C.